Merge branch 'akpm-current/current'

Conflicts: arch/arm64/Kconfig mm/shmem.c
author: Stephen Rothwell <sfr@canb.auug.org.au> 2014-07-30 20:08:38 +1000
committer: Stephen Rothwell <sfr@canb.auug.org.au> 2014-07-30 20:08:38 +1000
commit: d653b0b3717843efa3e72bdcaf37b2a0b598eea0 (patch)
tree: c95b2471229d71fb0ced2f37723b7223e9987474 /fs
parent: 3f607a5176e202974afb3dbb31d0f37cb2f4551f (diff)
parent: 76e1488440013a0d737fbb9d1f8efe226138f7f0 (diff)
119 files changed, 2338 insertions, 948 deletions
diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h
index c770337c4b45..24575d9d882d 100644
--- a/fs/adfs/adfs.h
+++ b/fs/adfs/adfs.h
@@ -153,6 +153,7 @@ extern int adfs_map_lookup(struct super_block *sb, unsigned int frag_id, unsigne
 extern unsigned int adfs_map_free(struct super_block *sb);
 
 /* Misc */
+__printf(3, 4)
 void __adfs_error(struct super_block *sb, const char *function,
 		  const char *fmt, ...);
 #define adfs_error(sb, fmt...) __adfs_error(sb, __func__, fmt)
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index 0d138c0de293..51c279a29845 100644
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -138,7 +138,7 @@ adfs_dir_lookup_byname(struct inode *inode, struct qstr *name, struct object_inf
 		goto out;
 
 	if (ADFS_I(inode)->parent_id != dir.parent_id) {
-		adfs_error(sb, "parent directory changed under me! (%lx but got %lx)\n",
+		adfs_error(sb, "parent directory changed under me! (%lx but got %x)\n",
 			   ADFS_I(inode)->parent_id, dir.parent_id);
 		ret = -EIO;
 		goto free_out;
diff --git a/fs/adfs/dir_fplus.c b/fs/adfs/dir_fplus.c
index d9e3bee4e653..f2ba88ab4aed 100644
--- a/fs/adfs/dir_fplus.c
+++ b/fs/adfs/dir_fplus.c
@@ -55,10 +55,10 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
 	}
 
 	size >>= sb->s_blocksize_bits;
-	if (size > sizeof(dir->bh)/sizeof(dir->bh[0])) {
+	if (size > ARRAY_SIZE(dir->bh)) {
 		/* this directory is too big for fixed bh set, must allocate */
 		struct buffer_head **bh_fplus =
-			kzalloc(size * sizeof(struct buffer_head *),
+			kcalloc(size, sizeof(struct buffer_head *),
 				GFP_KERNEL);
 		if (!bh_fplus) {
 			adfs_error(sb, "not enough memory for"
@@ -79,9 +79,8 @@ adfs_fplus_read(struct super_block *sb, unsigned int id, unsigned int sz, struct
 
 		dir->bh_fplus[blk] = sb_bread(sb, block);
 		if (!dir->bh_fplus[blk]) {
-			adfs_error(sb,	"dir object %X failed read for"
-					" offset %d, mapped block %X",
-					id, blk, block);
+			adfs_error(sb,	"dir object %x failed read for offset %d, mapped block %lX",
+				   id, blk, block);
 			goto out;
 		}
 
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index acf32054edd8..9e359fb20c0a 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -143,20 +143,6 @@ static inline int autofs4_oz_mode(struct autofs_sb_info *sbi) {
 	return sbi->catatonic || task_pgrp(current) == sbi->oz_pgrp;
 }
 
-/* Does a dentry have some pending activity? */
-static inline int autofs4_ispending(struct dentry *dentry)
-{
-	struct autofs_info *inf = autofs4_dentry_ino(dentry);
-
-	if (inf->flags & AUTOFS_INF_PENDING)
-		return 1;
-
-	if (inf->flags & AUTOFS_INF_EXPIRING)
-		return 1;
-
-	return 0;
-}
-
 struct inode *autofs4_get_inode(struct super_block *, umode_t);
 void autofs4_free_ino(struct autofs_info *);
 
@@ -191,55 +177,6 @@ extern const struct file_operations autofs4_root_operations;
 extern const struct dentry_operations autofs4_dentry_operations;
 
 /* VFS automount flags management functions */
-
-static inline void __managed_dentry_set_automount(struct dentry *dentry)
-{
-	dentry->d_flags |= DCACHE_NEED_AUTOMOUNT;
-}
-
-static inline void managed_dentry_set_automount(struct dentry *dentry)
-{
-	spin_lock(&dentry->d_lock);
-	__managed_dentry_set_automount(dentry);
-	spin_unlock(&dentry->d_lock);
-}
-
-static inline void __managed_dentry_clear_automount(struct dentry *dentry)
-{
-	dentry->d_flags &= ~DCACHE_NEED_AUTOMOUNT;
-}
-
-static inline void managed_dentry_clear_automount(struct dentry *dentry)
-{
-	spin_lock(&dentry->d_lock);
-	__managed_dentry_clear_automount(dentry);
-	spin_unlock(&dentry->d_lock);
-}
-
-static inline void __managed_dentry_set_transit(struct dentry *dentry)
-{
-	dentry->d_flags |= DCACHE_MANAGE_TRANSIT;
-}
-
-static inline void managed_dentry_set_transit(struct dentry *dentry)
-{
-	spin_lock(&dentry->d_lock);
-	__managed_dentry_set_transit(dentry);
-	spin_unlock(&dentry->d_lock);
-}
-
-static inline void __managed_dentry_clear_transit(struct dentry *dentry)
-{
-	dentry->d_flags &= ~DCACHE_MANAGE_TRANSIT;
-}
-
-static inline void managed_dentry_clear_transit(struct dentry *dentry)
-{
-	spin_lock(&dentry->d_lock);
-	__managed_dentry_clear_transit(dentry);
-	spin_unlock(&dentry->d_lock);
-}
-
 static inline void __managed_dentry_set_managed(struct dentry *dentry)
 {
 	dentry->d_flags |= (DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT);
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index 394e90b02c5e..a7be57e39be7 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -333,7 +333,6 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
 	if (ino->flags & AUTOFS_INF_PENDING)
 		goto out;
 	if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
-		struct autofs_info *ino = autofs4_dentry_ino(root);
 		ino->flags |= AUTOFS_INF_EXPIRING;
 		init_completion(&ino->expire_complete);
 		spin_unlock(&sbi->fs_lock);
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index cc87c1abac97..cdb25ebccc4c 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -166,8 +166,10 @@ static struct dentry *autofs4_lookup_active(struct dentry *dentry)
 	const unsigned char *str = name->name;
 	struct list_head *p, *head;
 
-	spin_lock(&sbi->lookup_lock);
 	head = &sbi->active_list;
+	if (list_empty(head))
+		return NULL;
+	spin_lock(&sbi->lookup_lock);
 	list_for_each(p, head) {
 		struct autofs_info *ino;
 		struct dentry *active;
@@ -218,8 +220,10 @@ static struct dentry *autofs4_lookup_expiring(struct dentry *dentry)
 	const unsigned char *str = name->name;
 	struct list_head *p, *head;
 
-	spin_lock(&sbi->lookup_lock);
 	head = &sbi->expiring_list;
+	if (list_empty(head))
+		return NULL;
+	spin_lock(&sbi->lookup_lock);
 	list_for_each(p, head) {
 		struct autofs_info *ino;
 		struct dentry *expiring;
@@ -373,7 +377,7 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
 		 * this because the leaves of the directory tree under the
 		 * mount never trigger mounts themselves (they have an autofs
 		 * trigger mount mounted on them). But v4 pseudo direct mounts
-		 * do need the leaves to to trigger mounts. In this case we
+		 * do need the leaves to trigger mounts. In this case we
 		 * have no choice but to use the list_empty() check and
 		 * require user space behave.
 		 */
diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index f7f87e233dd9..f40006db36df 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -46,6 +46,7 @@ static inline struct bfs_inode_info *BFS_I(struct inode *inode)
 
 /* inode.c */
 extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
+extern void bfs_dump_imap(const char *, struct super_block *);
 
 /* file.c */
 extern const struct inode_operations bfs_file_inops;
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index a399e6d9dc74..08063ae0a17c 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -75,8 +75,6 @@ const struct file_operations bfs_dir_operations = {
 	.llseek		= generic_file_llseek,
 };
 
-extern void dump_imap(const char *, struct super_block *);
-
 static int bfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 						bool excl)
 {
@@ -110,7 +108,7 @@ static int bfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 	BFS_I(inode)->i_eblock = 0;
 	insert_inode_hash(inode);
         mark_inode_dirty(inode);
-	dump_imap("create", s);
+	bfs_dump_imap("create", s);
 
 	err = bfs_add_entry(dir, dentry->d_name.name, dentry->d_name.len,
 							inode->i_ino);
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 7041ac35ace8..90bc079d9982 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -30,8 +30,6 @@ MODULE_LICENSE("GPL");
 #define dprintf(x...)
 #endif
 
-void dump_imap(const char *prefix, struct super_block *s);
-
 struct inode *bfs_iget(struct super_block *sb, unsigned long ino)
 {
 	struct bfs_inode *di;
@@ -194,7 +192,7 @@ static void bfs_evict_inode(struct inode *inode)
 			info->si_freeb += bi->i_eblock + 1 - bi->i_sblock;
 		info->si_freei++;
 		clear_bit(ino, info->si_imap);
-		dump_imap("delete_inode", s);
+		bfs_dump_imap("delete_inode", s);
         }
 
 	/*
@@ -297,7 +295,7 @@ static const struct super_operations bfs_sops = {
 	.statfs		= bfs_statfs,
 };
 
-void dump_imap(const char *prefix, struct super_block *s)
+void bfs_dump_imap(const char *prefix, struct super_block *s)
 {
 #ifdef DEBUG
 	int i;
@@ -443,7 +441,7 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
 	}
 	brelse(bh);
 	brelse(sbh);
-	dump_imap("read_super", s);
+	bfs_dump_imap("read_super", s);
 	return 0;
 
 out3:
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 3892c1a23241..d94672a1f272 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -145,6 +145,25 @@ static int padzero(unsigned long elf_bss)
 #define ELF_BASE_PLATFORM NULL
 #endif
 
+/*
+ * Use get_random_int() to implement AT_RANDOM while avoiding depletion
+ * of the entropy pool.
+ */
+static void get_atrandom_bytes(unsigned char *buf, size_t nbytes)
+{
+	unsigned char *p = buf;
+
+	while (nbytes) {
+		unsigned int random_variable;
+		size_t chunk = min_t(size_t, nbytes, sizeof(random_variable));
+
+		random_variable = get_random_int();
+		memcpy(p, &random_variable, chunk);
+		p += chunk;
+		nbytes -= chunk;
+	}
+}
+
 static int
 create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 		unsigned long load_addr, unsigned long interp_load_addr)
@@ -206,7 +225,7 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 	/*
 	 * Generate 16 random bytes for userspace PRNG seeding.
 	 */
-	get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes));
+	get_atrandom_bytes(k_rand_bytes, sizeof(k_rand_bytes));
 	u_rand_bytes = (elf_addr_t __user *)
 		       STACK_ALLOC(p, sizeof(k_rand_bytes));
 	if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes)))
diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index d749731dc0ee..dd333a67ebc2 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
 	       args);
 
 	/* start by checking things over */
-	ASSERT(cache->fstop_percent >= 0 &&
-	       cache->fstop_percent < cache->fcull_percent &&
+	ASSERT(cache->fstop_percent < cache->fcull_percent &&
 	       cache->fcull_percent < cache->frun_percent &&
 	       cache->frun_percent  < 100);
 
-	ASSERT(cache->bstop_percent >= 0 &&
-	       cache->bstop_percent < cache->bcull_percent &&
+	ASSERT(cache->bstop_percent < cache->bcull_percent &&
 	       cache->bcull_percent < cache->brun_percent &&
 	       cache->brun_percent  < 100);
 
diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
index b078d3081d6c..ff43e5a8711f 100644
--- a/fs/cachefiles/daemon.c
+++ b/fs/cachefiles/daemon.c
@@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
 	if (test_bit(CACHEFILES_DEAD, &cache->flags))
 		return -EIO;
 
-	if (datalen < 0 || datalen > PAGE_SIZE - 1)
+	if (datalen > PAGE_SIZE - 1)
 		return -EOPNOTSUPP;
 
 	/* drag the command string into the kernel so we can parse it */
@@ -385,7 +385,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
 	if (args[0] != '%' || args[1] != '\0')
 		return -EINVAL;
 
-	if (fstop < 0 || fstop >= cache->fcull_percent)
+	if (fstop >= cache->fcull_percent)
 		return cachefiles_daemon_range_error(cache, args);
 
 	cache->fstop_percent = fstop;
@@ -457,7 +457,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
 	if (args[0] != '%' || args[1] != '\0')
 		return -EINVAL;
 
-	if (bstop < 0 || bstop >= cache->bcull_percent)
+	if (bstop >= cache->bcull_percent)
 		return cachefiles_daemon_range_error(cache, args);
 
 	cache->bstop_percent = bstop;
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index 7ff866dbb89e..54ac0e8ad96c 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -38,7 +38,7 @@ static const struct cifs_sid sid_everyone = {
 	1, 1, {0, 0, 0, 0, 0, 1}, {0} };
 /* security id for Authenticated Users system group */
 static const struct cifs_sid sid_authusers = {
-	1, 1, {0, 0, 0, 0, 0, 5}, {__constant_cpu_to_le32(11)} };
+	1, 1, {0, 0, 0, 0, 0, 5}, {cpu_to_le32(11)} };
 /* group users */
 static const struct cifs_sid sid_user = {1, 2 , {0, 0, 0, 0, 0, 5}, {} };
 
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 7d4361f40c23..692d79f2e104 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2477,14 +2477,14 @@ CIFSSMBPosixLock(const unsigned int xid, struct cifs_tcon *tcon,
 		}
 		parm_data = (struct cifs_posix_lock *)
 			((char *)&pSMBr->hdr.Protocol + data_offset);
-		if (parm_data->lock_type == __constant_cpu_to_le16(CIFS_UNLCK))
+		if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK))
 			pLockData->fl_type = F_UNLCK;
 		else {
 			if (parm_data->lock_type ==
-					__constant_cpu_to_le16(CIFS_RDLCK))
+					cpu_to_le16(CIFS_RDLCK))
 				pLockData->fl_type = F_RDLCK;
 			else if (parm_data->lock_type ==
-					__constant_cpu_to_le16(CIFS_WRLCK))
+					cpu_to_le16(CIFS_WRLCK))
 				pLockData->fl_type = F_WRLCK;
 
 			pLockData->fl_start = le64_to_cpu(parm_data->start);
@@ -3276,25 +3276,25 @@ CIFSSMB_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
 	pSMB->compression_state = cpu_to_le16(COMPRESSION_FORMAT_DEFAULT);
 
 	pSMB->TotalParameterCount = 0;
-	pSMB->TotalDataCount = __constant_cpu_to_le32(2);
+	pSMB->TotalDataCount = cpu_to_le32(2);
 	pSMB->MaxParameterCount = 0;
 	pSMB->MaxDataCount = 0;
 	pSMB->MaxSetupCount = 4;
 	pSMB->Reserved = 0;
 	pSMB->ParameterOffset = 0;
-	pSMB->DataCount = __constant_cpu_to_le32(2);
+	pSMB->DataCount = cpu_to_le32(2);
 	pSMB->DataOffset =
 		cpu_to_le32(offsetof(struct smb_com_transaction_compr_ioctl_req,
 				compression_state) - 4);  /* 84 */
 	pSMB->SetupCount = 4;
-	pSMB->SubCommand = __constant_cpu_to_le16(NT_TRANSACT_IOCTL);
+	pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL);
 	pSMB->ParameterCount = 0;
-	pSMB->FunctionCode = __constant_cpu_to_le32(FSCTL_SET_COMPRESSION);
+	pSMB->FunctionCode = cpu_to_le32(FSCTL_SET_COMPRESSION);
 	pSMB->IsFsctl = 1; /* FSCTL */
 	pSMB->IsRootFlag = 0;
 	pSMB->Fid = fid; /* file handle always le */
 	/* 3 byte pad, followed by 2 byte compress state */
-	pSMB->ByteCount = __constant_cpu_to_le16(5);
+	pSMB->ByteCount = cpu_to_le16(5);
 	inc_rfc1001_len(pSMB, 5);
 
 	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
@@ -3430,10 +3430,10 @@ static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL,
 	cifs_acl->version = cpu_to_le16(1);
 	if (acl_type == ACL_TYPE_ACCESS) {
 		cifs_acl->access_entry_count = cpu_to_le16(count);
-		cifs_acl->default_entry_count = __constant_cpu_to_le16(0xFFFF);
+		cifs_acl->default_entry_count = cpu_to_le16(0xFFFF);
 	} else if (acl_type == ACL_TYPE_DEFAULT) {
 		cifs_acl->default_entry_count = cpu_to_le16(count);
-		cifs_acl->access_entry_count = __constant_cpu_to_le16(0xFFFF);
+		cifs_acl->access_entry_count = cpu_to_le16(0xFFFF);
 	} else {
 		cifs_dbg(FYI, "unknown ACL type %d\n", acl_type);
 		return 0;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 01a6339a554c..03558d432f7a 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1058,7 +1058,7 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile)
 
 	max_num = (max_buf - sizeof(struct smb_hdr)) /
 						sizeof(LOCKING_ANDX_RANGE);
-	buf = kzalloc(max_num * sizeof(LOCKING_ANDX_RANGE), GFP_KERNEL);
+	buf = kcalloc(max_num, sizeof(LOCKING_ANDX_RANGE), GFP_KERNEL);
 	if (!buf) {
 		free_xid(xid);
 		return -ENOMEM;
@@ -1393,7 +1393,7 @@ cifs_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
 
 	max_num = (max_buf - sizeof(struct smb_hdr)) /
 						sizeof(LOCKING_ANDX_RANGE);
-	buf = kzalloc(max_num * sizeof(LOCKING_ANDX_RANGE), GFP_KERNEL);
+	buf = kcalloc(max_num, sizeof(LOCKING_ANDX_RANGE), GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 39ee32688eac..39b850786e12 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -46,7 +46,7 @@ static __u32 cifs_ssetup_hdr(struct cifs_ses *ses, SESSION_SETUP_ANDX *pSMB)
 					CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4,
 					USHRT_MAX));
 	pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
-	pSMB->req.VcNumber = __constant_cpu_to_le16(1);
+	pSMB->req.VcNumber = cpu_to_le16(1);
 
 	/* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */
 
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index 3f17b4550831..e5100b8fb3a0 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -111,7 +111,7 @@ smb2_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
 		return -EINVAL;
 
 	max_num = max_buf / sizeof(struct smb2_lock_element);
-	buf = kzalloc(max_num * sizeof(struct smb2_lock_element), GFP_KERNEL);
+	buf = kcalloc(max_num, sizeof(struct smb2_lock_element), GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
@@ -247,7 +247,7 @@ smb2_push_mandatory_locks(struct cifsFileInfo *cfile)
 	}
 
 	max_num = max_buf / sizeof(struct smb2_lock_element);
-	buf = kzalloc(max_num * sizeof(struct smb2_lock_element), GFP_KERNEL);
+	buf = kcalloc(max_num, sizeof(struct smb2_lock_element), GFP_KERNEL);
 	if (!buf) {
 		free_xid(xid);
 		return -ENOMEM;
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index b8021fde987d..36867bd21d04 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -67,27 +67,27 @@ check_smb2_hdr(struct smb2_hdr *hdr, __u64 mid)
  *  indexed by command in host byte order
  */
 static const __le16 smb2_rsp_struct_sizes[NUMBER_OF_SMB2_COMMANDS] = {
-	/* SMB2_NEGOTIATE */ __constant_cpu_to_le16(65),
-	/* SMB2_SESSION_SETUP */ __constant_cpu_to_le16(9),
-	/* SMB2_LOGOFF */ __constant_cpu_to_le16(4),
-	/* SMB2_TREE_CONNECT */ __constant_cpu_to_le16(16),
-	/* SMB2_TREE_DISCONNECT */ __constant_cpu_to_le16(4),
-	/* SMB2_CREATE */ __constant_cpu_to_le16(89),
-	/* SMB2_CLOSE */ __constant_cpu_to_le16(60),
-	/* SMB2_FLUSH */ __constant_cpu_to_le16(4),
-	/* SMB2_READ */ __constant_cpu_to_le16(17),
-	/* SMB2_WRITE */ __constant_cpu_to_le16(17),
-	/* SMB2_LOCK */ __constant_cpu_to_le16(4),
-	/* SMB2_IOCTL */ __constant_cpu_to_le16(49),
+	/* SMB2_NEGOTIATE */ cpu_to_le16(65),
+	/* SMB2_SESSION_SETUP */ cpu_to_le16(9),
+	/* SMB2_LOGOFF */ cpu_to_le16(4),
+	/* SMB2_TREE_CONNECT */ cpu_to_le16(16),
+	/* SMB2_TREE_DISCONNECT */ cpu_to_le16(4),
+	/* SMB2_CREATE */ cpu_to_le16(89),
+	/* SMB2_CLOSE */ cpu_to_le16(60),
+	/* SMB2_FLUSH */ cpu_to_le16(4),
+	/* SMB2_READ */ cpu_to_le16(17),
+	/* SMB2_WRITE */ cpu_to_le16(17),
+	/* SMB2_LOCK */ cpu_to_le16(4),
+	/* SMB2_IOCTL */ cpu_to_le16(49),
 	/* BB CHECK this ... not listed in documentation */
-	/* SMB2_CANCEL */ __constant_cpu_to_le16(0),
-	/* SMB2_ECHO */ __constant_cpu_to_le16(4),
-	/* SMB2_QUERY_DIRECTORY */ __constant_cpu_to_le16(9),
-	/* SMB2_CHANGE_NOTIFY */ __constant_cpu_to_le16(9),
-	/* SMB2_QUERY_INFO */ __constant_cpu_to_le16(9),
-	/* SMB2_SET_INFO */ __constant_cpu_to_le16(2),
+	/* SMB2_CANCEL */ cpu_to_le16(0),
+	/* SMB2_ECHO */ cpu_to_le16(4),
+	/* SMB2_QUERY_DIRECTORY */ cpu_to_le16(9),
+	/* SMB2_CHANGE_NOTIFY */ cpu_to_le16(9),
+	/* SMB2_QUERY_INFO */ cpu_to_le16(9),
+	/* SMB2_SET_INFO */ cpu_to_le16(2),
 	/* BB FIXME can also be 44 for lease break */
-	/* SMB2_OPLOCK_BREAK */ __constant_cpu_to_le16(24)
+	/* SMB2_OPLOCK_BREAK */ cpu_to_le16(24)
 };
 
 int
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 081529f316e3..59437c50472f 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -590,7 +590,7 @@ smb2_clone_range(const unsigned int xid,
 		goto cchunk_out;
 
 	/* For now array only one chunk long, will make more flexible later */
-	pcchunk->ChunkCount = __constant_cpu_to_le32(1);
+	pcchunk->ChunkCount = cpu_to_le32(1);
 	pcchunk->Reserved = 0;
 	pcchunk->Reserved2 = 0;
 
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 768cddb72bdb..2057250c76d3 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1355,7 +1355,7 @@ SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
 	char *ret_data = NULL;
 
 	fsctl_input.CompressionState =
-			__constant_cpu_to_le16(COMPRESSION_FORMAT_DEFAULT);
+			cpu_to_le16(COMPRESSION_FORMAT_DEFAULT);
 
 	rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid,
 			FSCTL_SET_COMPRESSION, true /* is_fsctl */,
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 69f3595d3952..d03adad014db 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -85,7 +85,7 @@
 /* BB FIXME - analyze following length BB */
 #define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
 
-#define SMB2_PROTO_NUMBER __constant_cpu_to_le32(0x424d53fe)
+#define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
 
 /*
  * SMB2 Header Definition
@@ -96,7 +96,7 @@
  *
  */
 
-#define SMB2_HEADER_STRUCTURE_SIZE __constant_cpu_to_le16(64)
+#define SMB2_HEADER_STRUCTURE_SIZE cpu_to_le16(64)
 
 struct smb2_hdr {
 	__be32 smb2_buf_length;	/* big endian on wire */
@@ -137,16 +137,16 @@ struct smb2_transform_hdr {
 } __packed;
 
 /* Encryption Algorithms */
-#define SMB2_ENCRYPTION_AES128_CCM	__constant_cpu_to_le16(0x0001)
+#define SMB2_ENCRYPTION_AES128_CCM	cpu_to_le16(0x0001)
 
 /*
  *	SMB2 flag definitions
  */
-#define SMB2_FLAGS_SERVER_TO_REDIR	__constant_cpu_to_le32(0x00000001)
-#define SMB2_FLAGS_ASYNC_COMMAND	__constant_cpu_to_le32(0x00000002)
-#define SMB2_FLAGS_RELATED_OPERATIONS	__constant_cpu_to_le32(0x00000004)
-#define SMB2_FLAGS_SIGNED		__constant_cpu_to_le32(0x00000008)
-#define SMB2_FLAGS_DFS_OPERATIONS	__constant_cpu_to_le32(0x10000000)
+#define SMB2_FLAGS_SERVER_TO_REDIR	cpu_to_le32(0x00000001)
+#define SMB2_FLAGS_ASYNC_COMMAND	cpu_to_le32(0x00000002)
+#define SMB2_FLAGS_RELATED_OPERATIONS	cpu_to_le32(0x00000004)
+#define SMB2_FLAGS_SIGNED		cpu_to_le32(0x00000008)
+#define SMB2_FLAGS_DFS_OPERATIONS	cpu_to_le32(0x10000000)
 
 /*
  *	Definitions for SMB2 Protocol Data Units (network frames)
@@ -157,7 +157,7 @@ struct smb2_transform_hdr {
  *
  */
 
-#define SMB2_ERROR_STRUCTURE_SIZE2 __constant_cpu_to_le16(9)
+#define SMB2_ERROR_STRUCTURE_SIZE2 cpu_to_le16(9)
 
 struct smb2_err_rsp {
 	struct smb2_hdr hdr;
@@ -500,12 +500,12 @@ struct create_context {
 #define SMB2_LEASE_HANDLE_CACHING_HE	0x02
 #define SMB2_LEASE_WRITE_CACHING_HE	0x04
 
-#define SMB2_LEASE_NONE			__constant_cpu_to_le32(0x00)
-#define SMB2_LEASE_READ_CACHING		__constant_cpu_to_le32(0x01)
-#define SMB2_LEASE_HANDLE_CACHING	__constant_cpu_to_le32(0x02)
-#define SMB2_LEASE_WRITE_CACHING	__constant_cpu_to_le32(0x04)
+#define SMB2_LEASE_NONE			cpu_to_le32(0x00)
+#define SMB2_LEASE_READ_CACHING		cpu_to_le32(0x01)
+#define SMB2_LEASE_HANDLE_CACHING	cpu_to_le32(0x02)
+#define SMB2_LEASE_WRITE_CACHING	cpu_to_le32(0x04)
 
-#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS __constant_cpu_to_le32(0x02)
+#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS cpu_to_le32(0x02)
 
 #define SMB2_LEASE_KEY_SIZE 16
 
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index 1da168c61d35..278f8fdeb9ef 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -13,7 +13,7 @@
 #include <linux/fs.h>
 #include <linux/stat.h>
 #include <linux/errno.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/string.h>
 #include <linux/list.h>
 #include <linux/sched.h>
diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c
index 2849f41e72a2..1326d38960db 100644
--- a/fs/coda/coda_linux.c
+++ b/fs/coda/coda_linux.c
@@ -13,7 +13,7 @@
 #include <linux/fs.h>
 #include <linux/stat.h>
 #include <linux/errno.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/string.h>
 
 #include <linux/coda.h>
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index cd8a63238b11..9c3dedc000d1 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -19,8 +19,7 @@
 #include <linux/string.h>
 #include <linux/spinlock.h>
 #include <linux/namei.h>
-
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <linux/coda.h>
 #include <linux/coda_psdev.h>
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 9e83b7790212..d244d743a232 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -18,7 +18,7 @@
 #include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/slab.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <linux/coda.h>
 #include <linux/coda_psdev.h>
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index fe3afb2de880..b945410bfcd5 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -21,9 +21,7 @@
 #include <linux/vfs.h>
 #include <linux/slab.h>
 #include <linux/pid_namespace.h>
-
-#include <asm/uaccess.h>
-
+#include <linux/uaccess.h>
 #include <linux/fs.h>
 #include <linux/vmalloc.h>
 
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
index 3f5de96bbb58..4326d172fc27 100644
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -16,7 +16,7 @@
 #include <linux/string.h>
 #include <linux/namei.h>
 #include <linux/module.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <linux/coda.h>
 #include <linux/coda_psdev.h>
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 5c1e4242368b..822629126e89 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -40,7 +40,7 @@
 #include <linux/pid_namespace.h>
 #include <asm/io.h>
 #include <asm/poll.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <linux/coda.h>
 #include <linux/coda_psdev.h>
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index 21fcf8dcb9cd..5bb6e27298a4 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -27,7 +27,7 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/mutex.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 #include <linux/vfs.h>
 
diff --git a/fs/compat.c b/fs/compat.c
index 66d3d3c6b4b2..6917fdba382c 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -562,7 +562,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
 		goto out;
 
 	ret = -EINVAL;
-	if (nr_segs > UIO_MAXIOV || nr_segs < 0)
+	if (nr_segs > UIO_MAXIOV)
 		goto out;
 	if (nr_segs > fast_segs) {
 		ret = -ENOMEM;
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index ddcfe590b8a8..355c522f3585 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -11,6 +11,8 @@
  * The actual compression is based on zlib, see the other files.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>
@@ -21,7 +23,7 @@
 #include <linux/vfs.h>
 #include <linux/mutex.h>
 #include <uapi/linux/cramfs_fs.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include "internal.h"
 
@@ -153,7 +155,7 @@ static struct inode *get_cramfs_inode(struct super_block *sb,
 
 static unsigned char read_buffers[READ_BUFFERS][BUFFER_SIZE];
 static unsigned buffer_blocknr[READ_BUFFERS];
-static struct super_block * buffer_dev[READ_BUFFERS];
+static struct super_block *buffer_dev[READ_BUFFERS];
 static int next_buffer;
 
 /*
@@ -205,6 +207,7 @@ static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned i
 
 	for (i = 0; i < BLKS_PER_BUF; i++) {
 		struct page *page = pages[i];
+
 		if (page) {
 			wait_on_page_locked(page);
 			if (!PageUptodate(page)) {
@@ -223,6 +226,7 @@ static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned i
 	data = read_buffers[buffer];
 	for (i = 0; i < BLKS_PER_BUF; i++) {
 		struct page *page = pages[i];
+
 		if (page) {
 			memcpy(data, kmap(page), PAGE_CACHE_SIZE);
 			kunmap(page);
@@ -237,6 +241,7 @@ static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned i
 static void cramfs_kill_sb(struct super_block *sb)
 {
 	struct cramfs_sb_info *sbi = CRAMFS_SB(sb);
+
 	kill_block_super(sb);
 	kfree(sbi);
 }
@@ -277,7 +282,7 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
 		/* check for wrong endianness */
 		if (super.magic == CRAMFS_MAGIC_WEND) {
 			if (!silent)
-				printk(KERN_ERR "cramfs: wrong endianness\n");
+				pr_err("wrong endianness\n");
 			return -EINVAL;
 		}
 
@@ -287,22 +292,22 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
 		mutex_unlock(&read_mutex);
 		if (super.magic != CRAMFS_MAGIC) {
 			if (super.magic == CRAMFS_MAGIC_WEND && !silent)
-				printk(KERN_ERR "cramfs: wrong endianness\n");
+				pr_err("wrong endianness\n");
 			else if (!silent)
-				printk(KERN_ERR "cramfs: wrong magic\n");
+				pr_err("wrong magic\n");
 			return -EINVAL;
 		}
 	}
 
 	/* get feature flags first */
 	if (super.flags & ~CRAMFS_SUPPORTED_FLAGS) {
-		printk(KERN_ERR "cramfs: unsupported filesystem features\n");
+		pr_err("unsupported filesystem features\n");
 		return -EINVAL;
 	}
 
 	/* Check that the root inode is in a sane state */
 	if (!S_ISDIR(super.root.mode)) {
-		printk(KERN_ERR "cramfs: root is not a directory\n");
+		pr_err("root is not a directory\n");
 		return -EINVAL;
 	}
 	/* correct strange, hard-coded permissions of mkcramfs */
@@ -310,23 +315,23 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	root_offset = super.root.offset << 2;
 	if (super.flags & CRAMFS_FLAG_FSID_VERSION_2) {
-		sbi->size=super.size;
-		sbi->blocks=super.fsid.blocks;
-		sbi->files=super.fsid.files;
+		sbi->size = super.size;
+		sbi->blocks = super.fsid.blocks;
+		sbi->files = super.fsid.files;
 	} else {
-		sbi->size=1<<28;
-		sbi->blocks=0;
-		sbi->files=0;
+		sbi->size = 1<<28;
+		sbi->blocks = 0;
+		sbi->files = 0;
 	}
-	sbi->magic=super.magic;
-	sbi->flags=super.flags;
+	sbi->magic = super.magic;
+	sbi->flags = super.flags;
 	if (root_offset == 0)
-		printk(KERN_INFO "cramfs: empty filesystem");
+		pr_info("empty filesystem");
 	else if (!(super.flags & CRAMFS_FLAG_SHIFTED_ROOT_OFFSET) &&
 		 ((root_offset != sizeof(struct cramfs_super)) &&
 		  (root_offset != 512 + sizeof(struct cramfs_super))))
 	{
-		printk(KERN_ERR "cramfs: bad root offset %lu\n", root_offset);
+		pr_err("bad root offset %lu\n", root_offset);
 		return -EINVAL;
 	}
 
@@ -425,7 +430,7 @@ static int cramfs_readdir(struct file *file, struct dir_context *ctx)
 /*
  * Lookup and fill in the inode data..
  */
-static struct dentry * cramfs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
+static struct dentry *cramfs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
 {
 	unsigned int offset = 0;
 	struct inode *inode = NULL;
@@ -483,7 +488,7 @@ out:
 	return NULL;
 }
 
-static int cramfs_readpage(struct file *file, struct page * page)
+static int cramfs_readpage(struct file *file, struct page *page)
 {
 	struct inode *inode = page->mapping->host;
 	u32 maxblock;
@@ -511,7 +516,7 @@ static int cramfs_readpage(struct file *file, struct page * page)
 		if (compr_len == 0)
 			; /* hole */
 		else if (unlikely(compr_len > (PAGE_CACHE_SIZE << 1))) {
-			pr_err("cramfs: bad compressed blocksize %u\n",
+			pr_err("bad compressed blocksize %u\n",
 				compr_len);
 			goto err;
 		} else {
diff --git a/fs/cramfs/uncompress.c b/fs/cramfs/uncompress.c
index 1760c1b84d97..ec4f1d4fdad0 100644
--- a/fs/cramfs/uncompress.c
+++ b/fs/cramfs/uncompress.c
@@ -15,6 +15,8 @@
  * then is used by multiple filesystems.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/vmalloc.h>
@@ -37,7 +39,7 @@ int cramfs_uncompress_block(void *dst, int dstlen, void *src, int srclen)
 
 	err = zlib_inflateReset(&stream);
 	if (err != Z_OK) {
-		printk("zlib_inflateReset error %d\n", err);
+		pr_err("zlib_inflateReset error %d\n", err);
 		zlib_inflateEnd(&stream);
 		zlib_inflateInit(&stream);
 	}
@@ -48,8 +50,8 @@ int cramfs_uncompress_block(void *dst, int dstlen, void *src, int srclen)
 	return stream.total_out;
 
 err:
-	printk("Error %d while decompressing!\n", err);
-	printk("%p(%d)->%p(%d)\n", src, srclen, dst, dstlen);
+	pr_err("Error %d while decompressing!\n", err);
+	pr_err("%p(%d)->%p(%d)\n", src, srclen, dst, dstlen);
 	return -EIO;
 }
 
@@ -57,7 +59,7 @@ int cramfs_uncompress_init(void)
 {
 	if (!initialized++) {
 		stream.workspace = vmalloc(zlib_inflate_workspacesize());
-		if ( !stream.workspace ) {
+		if (!stream.workspace) {
 			initialized = 0;
 			return -ENOMEM;
 		}
diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index 8d77ba7b1756..1323c568e362 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -718,16 +718,11 @@ static const struct file_operations waiters_fops = {
 
 void dlm_delete_debug_file(struct dlm_ls *ls)
 {
-	if (ls->ls_debug_rsb_dentry)
-		debugfs_remove(ls->ls_debug_rsb_dentry);
-	if (ls->ls_debug_waiters_dentry)
-		debugfs_remove(ls->ls_debug_waiters_dentry);
-	if (ls->ls_debug_locks_dentry)
-		debugfs_remove(ls->ls_debug_locks_dentry);
-	if (ls->ls_debug_all_dentry)
-		debugfs_remove(ls->ls_debug_all_dentry);
-	if (ls->ls_debug_toss_dentry)
-		debugfs_remove(ls->ls_debug_toss_dentry);
+	debugfs_remove(ls->ls_debug_rsb_dentry);
+	debugfs_remove(ls->ls_debug_waiters_dentry);
+	debugfs_remove(ls->ls_debug_locks_dentry);
+	debugfs_remove(ls->ls_debug_all_dentry);
+	debugfs_remove(ls->ls_debug_toss_dentry);
 }
 
 int dlm_create_debug_file(struct dlm_ls *ls)
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index 356c044e2cd3..bbee8f063dfa 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -12,7 +12,8 @@
 #include "efs.h"
 
 
-static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len) {
+static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len)
+{
 	struct buffer_head *bh;
 
 	int			slot, namelen;
@@ -40,10 +41,10 @@ static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len)
 		if (be16_to_cpu(dirblock->magic) != EFS_DIRBLK_MAGIC) {
 			pr_err("%s(): invalid directory block\n", __func__);
 			brelse(bh);
-			return(0);
+			return 0;
 		}
 
-		for(slot = 0; slot < dirblock->slots; slot++) {
+		for (slot = 0; slot < dirblock->slots; slot++) {
 			dirslot  = (struct efs_dentry *) (((char *) bh->b_data) + EFS_SLOTAT(dirblock, slot));
 
 			namelen  = dirslot->namelen;
@@ -52,12 +53,12 @@ static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len)
 			if ((namelen == len) && (!memcmp(name, nameptr, len))) {
 				inodenum = be32_to_cpu(dirslot->inode);
 				brelse(bh);
-				return(inodenum);
+				return inodenum;
 			}
 		}
 		brelse(bh);
 	}
-	return(0);
+	return 0;
 }
 
 struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
diff --git a/fs/exec.c b/fs/exec.c
index ab1f1200ce5d..a2b42a98c743 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -368,10 +368,6 @@ static int bprm_mm_init(struct linux_binprm *bprm)
 	if (!mm)
 		goto err;
 
-	err = init_new_context(current, mm);
-	if (err)
-		goto err;
-
 	err = __bprm_mm_init(bprm);
 	if (err)
 		goto err;
diff --git a/fs/exofs/ore_raid.c b/fs/exofs/ore_raid.c
index 7f20f25c232c..84529b8a331b 100644
--- a/fs/exofs/ore_raid.c
+++ b/fs/exofs/ore_raid.c
@@ -116,7 +116,7 @@ static int _sp2d_alloc(unsigned pages_in_unit, unsigned group_width,
 			num_a1pa = min_t(unsigned, PAGE_SIZE / sizeof__a1pa,
 							pages_in_unit - i);
 
-			__a1pa = kzalloc(num_a1pa * sizeof__a1pa, GFP_KERNEL);
+			__a1pa = kcalloc(num_a1pa, sizeof__a1pa, GFP_KERNEL);
 			if (unlikely(!__a1pa)) {
 				ORE_DBGMSG("!! Failed to _alloc_1p_arrays=%d\n",
 					   num_a1pa);
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index a8bc47f75fa0..5b6e9f246233 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -107,7 +107,10 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 	}
 
 	if (!journal) {
-		ret = generic_file_fsync(file, start, end, datasync);
+		if (test_opt(inode->i_sb, BARRIER))
+			ret = generic_file_fsync(file, start, end, datasync);
+		else
+			ret = __generic_file_fsync(file, start, end, datasync);
 		if (!ret && !hlist_empty(&inode->i_dentry))
 			ret = ext4_sync_parent(inode);
 		goto out;
diff --git a/fs/fscache/main.c b/fs/fscache/main.c
index a31b83c5cbd9..b39d487ccfb0 100644
--- a/fs/fscache/main.c
+++ b/fs/fscache/main.c
@@ -67,7 +67,7 @@ static int fscache_max_active_sysctl(struct ctl_table *table, int write,
 	return ret;
 }
 
-struct ctl_table fscache_sysctls[] = {
+static struct ctl_table fscache_sysctls[] = {
 	{
 		.procname	= "object_max_active",
 		.data		= &fscache_object_max_active,
@@ -87,7 +87,7 @@ struct ctl_table fscache_sysctls[] = {
 	{}
 };
 
-struct ctl_table fscache_sysctls_root[] = {
+static struct ctl_table fscache_sysctls_root[] = {
 	{
 		.procname	= "fscache",
 		.mode		= 0555,
diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c
index 32602c667b4a..7892e6fddb66 100644
--- a/fs/hfsplus/catalog.c
+++ b/fs/hfsplus/catalog.c
@@ -38,21 +38,30 @@ int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
 	return hfsplus_strcmp(&k1->cat.name, &k2->cat.name);
 }
 
-void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
-			   u32 parent, struct qstr *str)
+/* Generates key for catalog file/folders record. */
+int hfsplus_cat_build_key(struct super_block *sb,
+		hfsplus_btree_key *key, u32 parent, struct qstr *str)
 {
-	int len;
+	int len, err;
 
 	key->cat.parent = cpu_to_be32(parent);
-	if (str) {
-		hfsplus_asc2uni(sb, &key->cat.name, HFSPLUS_MAX_STRLEN,
-					str->name, str->len);
-		len = be16_to_cpu(key->cat.name.length);
-	} else {
-		key->cat.name.length = 0;
-		len = 0;
-	}
+	err = hfsplus_asc2uni(sb, &key->cat.name, HFSPLUS_MAX_STRLEN,
+			str->name, str->len);
+	if (unlikely(err < 0))
+		return err;
+
+	len = be16_to_cpu(key->cat.name.length);
 	key->key_len = cpu_to_be16(6 + 2 * len);
+	return 0;
+}
+
+/* Generates key for catalog thread record. */
+void hfsplus_cat_build_key_with_cnid(struct super_block *sb,
+			hfsplus_btree_key *key, u32 parent)
+{
+	key->cat.parent = cpu_to_be32(parent);
+	key->cat.name.length = 0;
+	key->key_len = cpu_to_be16(6);
 }
 
 static void hfsplus_cat_build_key_uni(hfsplus_btree_key *key, u32 parent,
@@ -167,11 +176,16 @@ static int hfsplus_fill_cat_thread(struct super_block *sb,
 				   hfsplus_cat_entry *entry, int type,
 				   u32 parentid, struct qstr *str)
 {
+	int err;
+
 	entry->type = cpu_to_be16(type);
 	entry->thread.reserved = 0;
 	entry->thread.parentID = cpu_to_be32(parentid);
-	hfsplus_asc2uni(sb, &entry->thread.nodeName, HFSPLUS_MAX_STRLEN,
+	err = hfsplus_asc2uni(sb, &entry->thread.nodeName, HFSPLUS_MAX_STRLEN,
 				str->name, str->len);
+	if (unlikely(err < 0))
+		return err;
+
 	return 10 + be16_to_cpu(entry->thread.nodeName.length) * 2;
 }
 
@@ -183,7 +197,7 @@ int hfsplus_find_cat(struct super_block *sb, u32 cnid,
 	int err;
 	u16 type;
 
-	hfsplus_cat_build_key(sb, fd->search_key, cnid, NULL);
+	hfsplus_cat_build_key_with_cnid(sb, fd->search_key, cnid);
 	err = hfs_brec_read(fd, &tmp, sizeof(hfsplus_cat_entry));
 	if (err)
 		return err;
@@ -250,11 +264,16 @@ int hfsplus_create_cat(u32 cnid, struct inode *dir,
 	if (err)
 		return err;
 
-	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
+	hfsplus_cat_build_key_with_cnid(sb, fd.search_key, cnid);
 	entry_size = hfsplus_fill_cat_thread(sb, &entry,
 		S_ISDIR(inode->i_mode) ?
 			HFSPLUS_FOLDER_THREAD : HFSPLUS_FILE_THREAD,
 		dir->i_ino, str);
+	if (unlikely(entry_size < 0)) {
+		err = entry_size;
+		goto err2;
+	}
+
 	err = hfs_brec_find(&fd, hfs_find_rec_by_key);
 	if (err != -ENOENT) {
 		if (!err)
@@ -265,7 +284,10 @@ int hfsplus_create_cat(u32 cnid, struct inode *dir,
 	if (err)
 		goto err2;
 
-	hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);
+	err = hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);
+	if (unlikely(err))
+		goto err1;
+
 	entry_size = hfsplus_cat_build_record(&entry, cnid, inode);
 	err = hfs_brec_find(&fd, hfs_find_rec_by_key);
 	if (err != -ENOENT) {
@@ -288,7 +310,7 @@ int hfsplus_create_cat(u32 cnid, struct inode *dir,
 	return 0;
 
 err1:
-	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
+	hfsplus_cat_build_key_with_cnid(sb, fd.search_key, cnid);
 	if (!hfs_brec_find(&fd, hfs_find_rec_by_key))
 		hfs_brec_remove(&fd);
 err2:
@@ -313,7 +335,7 @@ int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
 	if (!str) {
 		int len;
 
-		hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
+		hfsplus_cat_build_key_with_cnid(sb, fd.search_key, cnid);
 		err = hfs_brec_find(&fd, hfs_find_rec_by_key);
 		if (err)
 			goto out;
@@ -329,7 +351,9 @@ int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
 			off + 2, len);
 		fd.search_key->key_len = cpu_to_be16(6 + len);
 	} else
-		hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);
+		err = hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, str);
+		if (unlikely(err))
+			goto out;
 
 	err = hfs_brec_find(&fd, hfs_find_rec_by_key);
 	if (err)
@@ -360,7 +384,7 @@ int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
 	if (err)
 		goto out;
 
-	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);
+	hfsplus_cat_build_key_with_cnid(sb, fd.search_key, cnid);
 	err = hfs_brec_find(&fd, hfs_find_rec_by_key);
 	if (err)
 		goto out;
@@ -405,7 +429,11 @@ int hfsplus_rename_cat(u32 cnid,
 	dst_fd = src_fd;
 
 	/* find the old dir entry and read the data */
-	hfsplus_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name);
+	err = hfsplus_cat_build_key(sb, src_fd.search_key,
+			src_dir->i_ino, src_name);
+	if (unlikely(err))
+		goto out;
+
 	err = hfs_brec_find(&src_fd, hfs_find_rec_by_key);
 	if (err)
 		goto out;
@@ -419,7 +447,11 @@ int hfsplus_rename_cat(u32 cnid,
 	type = be16_to_cpu(entry.type);
 
 	/* create new dir entry with the data from the old entry */
-	hfsplus_cat_build_key(sb, dst_fd.search_key, dst_dir->i_ino, dst_name);
+	err = hfsplus_cat_build_key(sb, dst_fd.search_key,
+			dst_dir->i_ino, dst_name);
+	if (unlikely(err))
+		goto out;
+
 	err = hfs_brec_find(&dst_fd, hfs_find_rec_by_key);
 	if (err != -ENOENT) {
 		if (!err)
@@ -436,7 +468,11 @@ int hfsplus_rename_cat(u32 cnid,
 	dst_dir->i_mtime = dst_dir->i_ctime = CURRENT_TIME_SEC;
 
 	/* finally remove the old entry */
-	hfsplus_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name);
+	err = hfsplus_cat_build_key(sb, src_fd.search_key,
+			src_dir->i_ino, src_name);
+	if (unlikely(err))
+		goto out;
+
 	err = hfs_brec_find(&src_fd, hfs_find_rec_by_key);
 	if (err)
 		goto out;
@@ -449,7 +485,7 @@ int hfsplus_rename_cat(u32 cnid,
 	src_dir->i_mtime = src_dir->i_ctime = CURRENT_TIME_SEC;
 
 	/* remove old thread entry */
-	hfsplus_cat_build_key(sb, src_fd.search_key, cnid, NULL);
+	hfsplus_cat_build_key_with_cnid(sb, src_fd.search_key, cnid);
 	err = hfs_brec_find(&src_fd, hfs_find_rec_by_key);
 	if (err)
 		goto out;
@@ -459,9 +495,14 @@ int hfsplus_rename_cat(u32 cnid,
 		goto out;
 
 	/* create new thread entry */
-	hfsplus_cat_build_key(sb, dst_fd.search_key, cnid, NULL);
+	hfsplus_cat_build_key_with_cnid(sb, dst_fd.search_key, cnid);
 	entry_size = hfsplus_fill_cat_thread(sb, &entry, type,
 		dst_dir->i_ino, dst_name);
+	if (unlikely(entry_size < 0)) {
+		err = entry_size;
+		goto out;
+	}
+
 	err = hfs_brec_find(&dst_fd, hfs_find_rec_by_key);
 	if (err != -ENOENT) {
 		if (!err)
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 610a3260bef1..435bea231cc6 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -44,7 +44,10 @@ static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry,
 	err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
 	if (err)
 		return ERR_PTR(err);
-	hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, &dentry->d_name);
+	err = hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino,
+			&dentry->d_name);
+	if (unlikely(err < 0))
+		goto fail;
 again:
 	err = hfs_brec_read(&fd, &entry, sizeof(entry));
 	if (err) {
@@ -97,9 +100,11 @@ again:
 					be32_to_cpu(entry.file.permissions.dev);
 				str.len = sprintf(name, "iNode%d", linkid);
 				str.name = name;
-				hfsplus_cat_build_key(sb, fd.search_key,
+				err = hfsplus_cat_build_key(sb, fd.search_key,
 					HFSPLUS_SB(sb)->hidden_dir->i_ino,
 					&str);
+				if (unlikely(err < 0))
+					goto fail;
 				goto again;
 			}
 		} else if (!dentry->d_fsdata)
@@ -145,7 +150,7 @@ static int hfsplus_readdir(struct file *file, struct dir_context *ctx)
 		err = -ENOMEM;
 		goto out;
 	}
-	hfsplus_cat_build_key(sb, fd.search_key, inode->i_ino, NULL);
+	hfsplus_cat_build_key_with_cnid(sb, fd.search_key, inode->i_ino);
 	err = hfs_brec_find(&fd, hfs_find_rec_by_key);
 	if (err)
 		goto out;
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index eb5e059f481a..b0441d65fa54 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -443,8 +443,10 @@ int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
 			     const hfsplus_btree_key *k2);
 int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
 			    const hfsplus_btree_key *k2);
-void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
+int hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
 			   u32 parent, struct qstr *str);
+void hfsplus_cat_build_key_with_cnid(struct super_block *sb,
+				     hfsplus_btree_key *key, u32 parent);
 void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);
 int hfsplus_find_cat(struct super_block *sb, u32 cnid,
 		     struct hfs_find_data *fd);
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 4cf2024b87da..593af2fdcc2d 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -515,7 +515,9 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
 	err = hfs_find_init(sbi->cat_tree, &fd);
 	if (err)
 		goto out_put_root;
-	hfsplus_cat_build_key(sb, fd.search_key, HFSPLUS_ROOT_CNID, &str);
+	err = hfsplus_cat_build_key(sb, fd.search_key, HFSPLUS_ROOT_CNID, &str);
+	if (unlikely(err < 0))
+		goto out_put_root;
 	if (!hfs_brec_read(&fd, &entry, sizeof(entry))) {
 		hfs_find_exit(&fd);
 		if (entry.type != cpu_to_be16(HFSPLUS_FOLDER))
diff --git a/fs/hpfs/dnode.c b/fs/hpfs/dnode.c
index f36fc010fccb..2923a7bd82ac 100644
--- a/fs/hpfs/dnode.c
+++ b/fs/hpfs/dnode.c
@@ -545,12 +545,13 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
 			struct dnode *d1;
 			struct quad_buffer_head qbh1;
 			if (hpfs_sb(i->i_sb)->sb_chk)
-			    if (up != i->i_ino) {
-				hpfs_error(i->i_sb,
-					"bad pointer to fnode, dnode %08x, pointing to %08x, should be %08lx",
-					dno, up, (unsigned long)i->i_ino);
-				return;
-			    }
+				if (up != i->i_ino) {
+					hpfs_error(i->i_sb,
+						   "bad pointer to fnode, dnode %08x, pointing to %08x, should be %08lx",
+						   dno, up,
+						   (unsigned long)i->i_ino);
+					return;
+				}
 			if ((d1 = hpfs_map_dnode(i->i_sb, down, &qbh1))) {
 				d1->up = cpu_to_le32(up);
 				d1->root_dnode = 1;
@@ -1061,8 +1062,8 @@ struct hpfs_dirent *map_fnode_dirent(struct super_block *s, fnode_secno fno,
 		hpfs_brelse4(qbh);
 		if (hpfs_sb(s)->sb_chk)
 			if (hpfs_stop_cycles(s, dno, &c1, &c2, "map_fnode_dirent #1")) {
-			kfree(name2);
-			return NULL;
+				kfree(name2);
+				return NULL;
 		}
 		goto go_down;
 	}
diff --git a/fs/isofs/Makefile b/fs/isofs/Makefile
index bf162f0942d5..47a68e357512 100644
--- a/fs/isofs/Makefile
+++ b/fs/isofs/Makefile
@@ -8,3 +8,5 @@ isofs-objs-y 			:= namei.o inode.o dir.o util.o rock.o export.o
 isofs-objs-$(CONFIG_JOLIET)	+= joliet.o
 isofs-objs-$(CONFIG_ZISOFS)	+= compress.o
 isofs-objs			:= $(isofs-objs-y)
+
+# ccflags-y := -DDEBUG_FLAGS=1
diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c
index 592e5115a561..c9ba688dc407 100644
--- a/fs/isofs/compress.c
+++ b/fs/isofs/compress.c
@@ -15,6 +15,8 @@
  *
  * Transparent decompression of files on an iso9660 filesystem
  */
+#define DEBUG
+#define pr_fmt(fmt) "zisofs: " fmt
 
 #include <linux/module.h>
 #include <linux/init.h>
@@ -110,7 +112,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start,
 			*errp = -ENOMEM;
 		else
 			*errp = -EIO;
-		printk(KERN_DEBUG "zisofs: zisofs_inflateInit returned %d\n",
+		pr_debug("zisofs_inflateInit returned %d\n",
 			       zerr);
 		goto z_eio;
 	}
@@ -154,12 +156,12 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start,
 				if (zerr == Z_MEM_ERROR)
 					*errp = -ENOMEM;
 				else {
-					printk(KERN_DEBUG
+					pr_debug(
 					       "zisofs: zisofs_inflate returned"
 					       " %d, inode = %lu,"
 					       " page idx = %d, bh idx = %d,"
-					       " avail_in = %d,"
-					       " avail_out = %d\n",
+					       " avail_in = %ld,"
+					       " avail_out = %ld\n",
 					       zerr, inode->i_ino, curpage,
 					       curbh, stream.avail_in,
 					       stream.avail_out);
diff --git a/fs/isofs/export.c b/fs/isofs/export.c
index 12088d8de3fa..44d1053dfad5 100644
--- a/fs/isofs/export.c
+++ b/fs/isofs/export.c
@@ -12,7 +12,7 @@
  *     Documentation/filesystems/nfs/Exporting
  *     fs/exportfs/expfs.c.
  */
-
+#define pr_fmt(fmt) "ISOFS: " fmt
 #include "isofs.h"
 
 static struct dentry *
@@ -52,8 +52,7 @@ static struct dentry *isofs_export_get_parent(struct dentry *child)
 
 	/* "child" must always be a directory. */
 	if (!S_ISDIR(child_inode->i_mode)) {
-		printk(KERN_ERR "isofs: isofs_export_get_parent(): "
-		       "child is not a directory!\n");
+		pr_err("%s(): child is not a directory!\n", __func__);
 		rv = ERR_PTR(-EACCES);
 		goto out;
 	}
@@ -62,8 +61,7 @@ static struct dentry *isofs_export_get_parent(struct dentry *child)
 	 * it is not zero, it means the directory failed to be
 	 * normalized for some reason. */
 	if (e_child_inode->i_iget5_offset != 0) {
-		printk(KERN_ERR "isofs: isofs_export_get_parent(): "
-		       "child directory not normalized!\n");
+		pr_err("isofs_export_get_parent(): child directory not normalized!\n");
 		rv = ERR_PTR(-EACCES);
 		goto out;
 	}
@@ -89,8 +87,7 @@ static struct dentry *isofs_export_get_parent(struct dentry *child)
 
 	/* Verify it is in fact the ".." entry. */
 	if ((isonum_711(de->name_len) != 1) || (de->name[0] != 1)) {
-		printk(KERN_ERR "isofs: Unable to find the \"..\" "
-		       "directory for NFS.\n");
+		pr_err("Unable to find the \"..\" directory for NFS.\n");
 		rv = ERR_PTR(-EACCES);
 		goto out;
 	}
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 4556ce1af5b0..cc23d86e174a 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -10,6 +10,8 @@
  *	2004  Paul Serice - Inode Support pushed out from 4GB to 128GB
  *	2004  Paul Serice - NFS Export Operations
  */
+#define DEBUG
+#define pr_fmt(fmt) "ISOFS: " fmt
 
 #include <linux/init.h>
 #include <linux/module.h>
@@ -528,23 +530,25 @@ static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
 		Te.cdte_format=CDROM_LBA;
 		i = ioctl_by_bdev(bdev, CDROMREADTOCENTRY, (unsigned long) &Te);
 		if (!i) {
-			printk(KERN_DEBUG "ISOFS: Session %d start %d type %d\n",
+			pr_debug("Session %d start %d type %d\n",
 				session, Te.cdte_addr.lba,
 				Te.cdte_ctrl&CDROM_DATA_TRACK);
 			if ((Te.cdte_ctrl&CDROM_DATA_TRACK) == 4)
 				return Te.cdte_addr.lba;
 		}
 
-		printk(KERN_ERR "ISOFS: Invalid session number or type of track\n");
+		pr_err("Invalid session number or type of track\n");
 	}
 	i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
 	if (session > 0)
-		printk(KERN_ERR "ISOFS: Invalid session number\n");
+		pr_err("Invalid session number\n");
 #if 0
-	printk(KERN_DEBUG "isofs.inode: CDROMMULTISESSION: rc=%d\n",i);
+	pr_debug("isofs.inode: CDROMMULTISESSION: rc=%d\n", i);
 	if (i==0) {
-		printk(KERN_DEBUG "isofs.inode: XA disk: %s\n",ms_info.xa_flag?"yes":"no");
-		printk(KERN_DEBUG "isofs.inode: vol_desc_start = %d\n", ms_info.addr.lba);
+		pr_debug("isofs.inode: XA disk: %s\n",
+			 ms_info.xa_flag?"yes":"no");
+		pr_debug("isofs.inode: vol_desc_start = %d\n",
+			 ms_info.addr.lba);
 	}
 #endif
 	if (i==0)
@@ -672,8 +676,7 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
 						else if (sec->escape[2] == 0x45)
 							joliet_level = 3;
 
-						printk(KERN_DEBUG "ISO 9660 Extensions: "
-							"Microsoft Joliet Level %d\n",
+						pr_debug("ISO 9660 Extensions: Microsoft Joliet Level %d\n",
 							joliet_level);
 					}
 					goto root_found;
@@ -771,11 +774,11 @@ root_found:
 			  isonum_711(rootp->ext_attr_length);
 	sbi->s_firstdatazone = first_data_zone;
 #ifndef BEQUIET
-	printk(KERN_DEBUG "ISOFS: Max size:%ld   Log zone size:%ld\n",
+	pr_debug("Max size:%ld   Log zone size:%ld\n",
 		sbi->s_max_size, 1UL << sbi->s_log_zone_size);
-	printk(KERN_DEBUG "ISOFS: First datazone:%ld\n", sbi->s_firstdatazone);
+	pr_debug("First datazone:%ld\n", sbi->s_firstdatazone);
 	if(sbi->s_high_sierra)
-		printk(KERN_DEBUG "ISOFS: Disc in High Sierra format.\n");
+		pr_debug("Disc in High Sierra format.\n");
 #endif
 
 	/*
@@ -878,9 +881,7 @@ root_found:
 	 */
 	if (sbi->s_rock == 1 && joliet_level &&
 				rootdir_empty(s, sbi->s_firstdatazone)) {
-		printk(KERN_NOTICE
-			"ISOFS: primary root directory is empty. "
-			"Disabling Rock Ridge and switching to Joliet.");
+		pr_notice("primary root directory is empty. Disabling Rock Ridge and switching to Joliet.");
 		sbi->s_rock = 0;
 	}
 
@@ -898,8 +899,7 @@ root_found:
 		sbi->s_rock = 0;
 		if (sbi->s_firstdatazone != first_data_zone) {
 			sbi->s_firstdatazone = first_data_zone;
-			printk(KERN_DEBUG
-				"ISOFS: changing to secondary root\n");
+			pr_debug("changing to secondary root\n");
 			iput(inode);
 			inode = isofs_iget(s, sbi->s_firstdatazone, 0);
 			if (IS_ERR(inode))
@@ -918,9 +918,8 @@ root_found:
 
 	/* Make sure the root inode is a directory */
 	if (!S_ISDIR(inode->i_mode)) {
-		printk(KERN_WARNING
-			"isofs_fill_super: root inode is not a directory. "
-			"Corrupted media?\n");
+		pr_warn("%s: root inode is not a directory. Corrupted media?\n",
+			__func__);
 		goto out_iput;
 	}
 
@@ -952,27 +951,26 @@ out_iput:
 out_no_root:
 	error = PTR_ERR(inode);
 	if (error != -ENOMEM)
-		printk(KERN_WARNING "%s: get root inode failed\n", __func__);
+		pr_warn("%s: get root inode failed\n", __func__);
 out_no_inode:
 #ifdef CONFIG_JOLIET
 	unload_nls(sbi->s_nls_iocharset);
 #endif
 	goto out_freesbi;
 out_no_read:
-	printk(KERN_WARNING "%s: bread failed, dev=%s, iso_blknum=%d, block=%d\n",
+	pr_warn("%s: bread failed, dev=%s, iso_blknum=%d, block=%d\n",
 		__func__, s->s_id, iso_blknum, block);
 	goto out_freebh;
 out_bad_zone_size:
-	printk(KERN_WARNING "ISOFS: Bad logical zone size %ld\n",
-		sbi->s_log_zone_size);
+	pr_warn("Bad logical zone size %ld\n", sbi->s_log_zone_size);
 	goto out_freebh;
 out_bad_size:
-	printk(KERN_WARNING "ISOFS: Logical zone size(%d) < hardware blocksize(%u)\n",
+	pr_warn("Logical zone size(%d) < hardware blocksize(%u)\n",
 		orig_zonesize, opt.blocksize);
 	goto out_freebh;
 out_unknown_format:
 	if (!silent)
-		printk(KERN_WARNING "ISOFS: Unable to identify CD-ROM format.\n");
+		pr_warn("Unable to identify CD-ROM format.\n");
 
 out_freebh:
 	brelse(bh);
@@ -1021,7 +1019,7 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock,
 	error = -EIO;
 	rv = 0;
 	if (iblock != b_off) {
-		printk(KERN_DEBUG "%s: block number too large\n", __func__);
+		pr_debug("%s: block number too large\n", __func__);
 		goto abort;
 	}
 
@@ -1042,7 +1040,7 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock,
 		 * I/O errors.
 		 */
 		if (b_off > ((inode->i_size + PAGE_CACHE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) {
-			printk(KERN_DEBUG "%s: block >= EOF (%lu, %llu)\n",
+			pr_debug("%s: block >= EOF (%lu, %llu)\n",
 				__func__, b_off,
 				(unsigned long long)inode->i_size);
 			goto abort;
@@ -1068,12 +1066,11 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock,
 			iput(ninode);
 
 			if (++section > 100) {
-				printk(KERN_DEBUG "%s: More than 100 file sections ?!?"
-					" aborting...\n", __func__);
-				printk(KERN_DEBUG "%s: block=%lu firstext=%u sect_size=%u "
-					"nextblk=%lu nextoff=%lu\n", __func__,
-					b_off, firstext, (unsigned) sect_size,
-					nextblk, nextoff);
+				pr_debug("%s: More than 100 file sections ?!? aborting...\n",
+					 __func__);
+				pr_debug("%s: block=%lu firstext=%u sect_size=%u nextblk=%lu nextoff=%lu\n",
+					__func__, b_off, firstext,
+					(unsigned) sect_size, nextblk, nextoff);
 				goto abort;
 			}
 		}
@@ -1105,7 +1102,7 @@ static int isofs_get_block(struct inode *inode, sector_t iblock,
 	int ret;
 
 	if (create) {
-		printk(KERN_DEBUG "%s: Kernel tries to allocate a block\n", __func__);
+		pr_debug("%s: Kernel tries to allocate a block\n", __func__);
 		return -EROFS;
 	}
 
@@ -1248,13 +1245,12 @@ out_nomem:
 	return -ENOMEM;
 
 out_noread:
-	printk(KERN_INFO "ISOFS: unable to read i-node block %lu\n", block);
+	pr_info("unable to read i-node block %lu\n", block);
 	kfree(tmpde);
 	return -EIO;
 
 out_toomany:
-	printk(KERN_INFO "%s: More than 100 file sections ?!?, aborting...\n"
-		"isofs_read_level3_size: inode=%lu\n",
+	pr_info("%s: More than 100 file sections ?!?, aborting...\n isofs_read_level3_size: inode=%lu\n",
 		__func__, inode->i_ino);
 	goto out;
 }
@@ -1289,7 +1285,7 @@ static int isofs_read_inode(struct inode *inode)
 
 		tmpde = kmalloc(de_len, GFP_KERNEL);
 		if (tmpde == NULL) {
-			printk(KERN_INFO "%s: out of memory\n", __func__);
+			pr_info("%s: out of memory\n", __func__);
 			ret = -ENOMEM;
 			goto fail;
 		}
@@ -1364,24 +1360,23 @@ static int isofs_read_inode(struct inode *inode)
 		inode->i_size &= 0x00ffffff;
 
 	if (de->interleave[0]) {
-		printk(KERN_DEBUG "ISOFS: Interleaved files not (yet) supported.\n");
+		pr_debug("Interleaved files not (yet) supported.\n");
 		inode->i_size = 0;
 	}
 
 	/* I have no idea what file_unit_size is used for, so
 	   we will flag it for now */
 	if (de->file_unit_size[0] != 0) {
-		printk(KERN_DEBUG "ISOFS: File unit size != 0 for ISO file (%ld).\n",
-			inode->i_ino);
+		pr_debug("File unit size != 0 for ISO file (%ld).\n",
+			 inode->i_ino);
 	}
 
 	/* I have no idea what other flag bits are used for, so
 	   we will flag it for now */
-#ifdef DEBUG
+#ifdef DEBUG_FLAGS
 	if((de->flags[-high_sierra] & ~2)!= 0){
-		printk(KERN_DEBUG "ISOFS: Unusual flag settings for ISO file "
-				"(%ld %x).\n",
-			inode->i_ino, de->flags[-high_sierra]);
+		pr_debug("Unusual flag settings for ISO file (%ld %x).\n",
+			 inode->i_ino, de->flags[-high_sierra]);
 	}
 #endif
 
@@ -1450,7 +1445,7 @@ out:
 	return ret;
 
 out_badread:
-	printk(KERN_WARNING "ISOFS: unable to read i-node block\n");
+	pr_warn("unable to read i-node block\n");
 fail:
 	goto out;
 }
@@ -1541,6 +1536,7 @@ MODULE_ALIAS("iso9660");
 static int __init init_iso9660_fs(void)
 {
 	int err = init_inodecache();
+
 	if (err)
 		goto out;
 #ifdef CONFIG_ZISOFS
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index 95295640d9c8..c5ed09733112 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -113,9 +113,8 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
 		dpnt = de->name;
 		/* Basic sanity check, whether name doesn't exceed dir entry */
 		if (de_len < dlen + sizeof(struct iso_directory_record)) {
-			printk(KERN_NOTICE "iso9660: Corrupted directory entry"
-			       " in block %lu of inode %lu\n", block,
-			       dir->i_ino);
+			pr_notice("Corrupted directory entry in block %lu of inode %lu\n",
+				  block, dir->i_ino);
 			return 0;
 		}
 
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index c0bf42472e40..b13119556e5d 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -5,6 +5,8 @@
  *
  *  Rock Ridge Extensions to iso9660
  */
+#define DEBUG
+#define pr_fmt(fmt) "ISOFS: rock: " fmt
 
 #include <linux/slab.h>
 #include <linux/pagemap.h>
@@ -89,9 +91,8 @@ static int rock_continue(struct rock_state *rs)
 	if ((unsigned)rs->cont_offset > blocksize - min_de_size ||
 	    (unsigned)rs->cont_size > blocksize ||
 	    (unsigned)(rs->cont_offset + rs->cont_size) > blocksize) {
-		printk(KERN_NOTICE "rock: corrupted directory entry. "
-			"extent=%d, offset=%d, size=%d\n",
-			rs->cont_extent, rs->cont_offset, rs->cont_size);
+		pr_notice("corrupted directory entry. extent=%d, offset=%d, size=%d\n",
+			  rs->cont_extent, rs->cont_offset, rs->cont_size);
 		ret = -EIO;
 		goto out;
 	}
@@ -117,7 +118,7 @@ static int rock_continue(struct rock_state *rs)
 			rs->cont_offset = 0;
 			return 0;
 		}
-		printk("Unable to read rock-ridge attributes\n");
+		pr_warn("Unable to read rock-ridge attributes\n");
 	}
 out:
 	kfree(rs->buffer);
@@ -176,10 +177,9 @@ static int rock_check_overflow(struct rock_state *rs, int sig)
 	}
 	len += offsetof(struct rock_ridge, u);
 	if (len > rs->len) {
-		printk(KERN_NOTICE "rock: directory entry would overflow "
-				"storage\n");
-		printk(KERN_NOTICE "rock: sig=0x%02x, size=%d, remaining=%d\n",
-				sig, len, rs->len);
+		pr_notice("directory entry would overflow storage\n");
+		pr_notice("sig=0x%02x, size=%d, remaining=%d\n",
+			  sig, len, rs->len);
 		return -EIO;
 	}
 	return 0;
@@ -257,7 +257,7 @@ repeat:
 				break;
 
 			if (rr->u.NM.flags & ~1) {
-				printk("Unsupported NM flag settings (%d)\n",
+				pr_warn("Unsupported NM flag settings (%d)\n",
 					rr->u.NM.flags);
 				break;
 			}
@@ -353,13 +353,13 @@ repeat:
 			break;
 		case SIG('E', 'R'):
 			ISOFS_SB(inode->i_sb)->s_rock = 1;
-			printk(KERN_DEBUG "ISO 9660 Extensions: ");
+			pr_debug("ISO 9660 Extensions: ");
 			{
 				int p;
 				for (p = 0; p < rr->u.ER.len_id; p++)
-					printk("%c", rr->u.ER.data[p]);
+					pr_warn("%c", rr->u.ER.data[p]);
 			}
-			printk("\n");
+			pr_warn("\n");
 			break;
 		case SIG('P', 'X'):
 			inode->i_mode = isonum_733(rr->u.PX.mode);
@@ -450,8 +450,7 @@ repeat:
 						inode->i_size += 1;
 						break;
 					default:
-						printk("Symlink component flag "
-							"not implemented\n");
+						pr_warn("Symlink component flag not implemented\n");
 					}
 					slen -= slp->len + 2;
 					oldslp = slp;
@@ -481,8 +480,7 @@ repeat:
 			symlink_len = inode->i_size;
 			break;
 		case SIG('R', 'E'):
-			printk(KERN_WARNING "Attempt to read inode for "
-					"relocated directory\n");
+			pr_warn("Attempt to read inode for relocated directory\n");
 			goto out;
 		case SIG('C', 'L'):
 			ISOFS_I(inode)->i_first_extent =
@@ -518,9 +516,7 @@ repeat:
 				int block_shift =
 					isonum_711(&rr->u.ZF.parms[1]);
 				if (block_shift > 17) {
-					printk(KERN_WARNING "isofs: "
-						"Can't handle ZF block "
-						"size of 2^%d\n",
+					pr_warn("Can't handle ZF block size of 2^%d\n",
 						block_shift);
 				} else {
 					/*
@@ -543,9 +539,7 @@ repeat:
 						       real_size);
 				}
 			} else {
-				printk(KERN_WARNING
-				       "isofs: Unknown ZF compression "
-						"algorithm: %c%c\n",
+				pr_warn("Unknown ZF compression algorithm: %c%c\n",
 				       rr->u.ZF.algorithm[0],
 				       rr->u.ZF.algorithm[1]);
 			}
@@ -604,7 +598,7 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
 			*rpnt++ = '/';
 			break;
 		default:
-			printk("Symlink component flag not implemented (%d)\n",
+			pr_warn("Symlink component flag not implemented (%d)\n",
 			       slp->flags);
 		}
 		slen -= slp->len + 2;
@@ -757,10 +751,10 @@ out:
 	kfree(rs.buffer);
 	goto fail;
 out_noread:
-	printk("unable to read i-node block");
+	pr_warn("unable to read i-node block");
 	goto fail;
 out_bad_span:
-	printk("symlink spans iso9660 blocks\n");
+	pr_warn("symlink spans iso9660 blocks\n");
 fail:
 	brelse(bh);
 error:
diff --git a/fs/jffs2/compr_zlib.c b/fs/jffs2/compr_zlib.c
index 0b9a1e44e833..5698dae5d92d 100644
--- a/fs/jffs2/compr_zlib.c
+++ b/fs/jffs2/compr_zlib.c
@@ -94,11 +94,12 @@ static int jffs2_zlib_compress(unsigned char *data_in,
 
 	while (def_strm.total_out < *dstlen - STREAM_END_SPACE && def_strm.total_in < *sourcelen) {
 		def_strm.avail_out = *dstlen - (def_strm.total_out + STREAM_END_SPACE);
-		def_strm.avail_in = min((unsigned)(*sourcelen-def_strm.total_in), def_strm.avail_out);
-		jffs2_dbg(1, "calling deflate with avail_in %d, avail_out %d\n",
+		def_strm.avail_in = min_t(unsigned long,
+			(*sourcelen-def_strm.total_in), def_strm.avail_out);
+		jffs2_dbg(1, "calling deflate with avail_in %ld, avail_out %ld\n",
 			  def_strm.avail_in, def_strm.avail_out);
 		ret = zlib_deflate(&def_strm, Z_PARTIAL_FLUSH);
-		jffs2_dbg(1, "deflate returned with avail_in %d, avail_out %d, total_in %ld, total_out %ld\n",
+		jffs2_dbg(1, "deflate returned with avail_in %ld, avail_out %ld, total_in %ld, total_out %ld\n",
 			  def_strm.avail_in, def_strm.avail_out,
 			  def_strm.total_in, def_strm.total_out);
 		if (ret != Z_OK) {
diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 48140315f627..380d86e1ab45 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -1019,11 +1019,11 @@ static int __logfs_is_valid_block(struct inode *inode, u64 bix, u64 ofs)
 /**
  * logfs_is_valid_block - check whether this block is still valid
  *
- * @sb	- superblock
- * @ofs	- block physical offset
- * @ino	- block inode number
- * @bix	- block index
- * @level - block level
+ * @sb:		superblock
+ * @ofs:	block physical offset
+ * @ino:	block inode number
+ * @bix:	block index
+ * @gc_level:	block level
  *
  * Returns 0 if the block is invalid, 1 if it is valid and 2 if it will
  * become invalid once the journal is written.
@@ -2226,10 +2226,9 @@ void btree_write_block(struct logfs_block *block)
  *
  * @inode:		parent inode (ifile or directory)
  * @buf:		object to write (inode or dentry)
- * @n:			object size
- * @_pos:		object number (file position in blocks/objects)
+ * @count:		object size
+ * @bix:		block index
  * @flags:		write flags
- * @lock:		0 if write lock is already taken, 1 otherwise
  * @shadow_tree:	shadow below this inode
  *
  * FIXME: All caller of this put a 200-300 byte variable on the stack,
diff --git a/fs/mpage.c b/fs/mpage.c
index 5f9ed622274f..003f6fe3cdb6 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -480,6 +480,7 @@ static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
 	struct buffer_head map_bh;
 	loff_t i_size = i_size_read(inode);
 	int ret = 0;
+	int wr = (wbc->sync_mode == WB_SYNC_ALL ?  WRITE_SYNC : WRITE);
 
 	if (page_has_buffers(page)) {
 		struct buffer_head *head = page_buffers(page);
@@ -588,7 +589,7 @@ page_is_mapped:
 	 * This page will go to BIO.  Do we need to send this BIO off first?
 	 */
 	if (bio && mpd->last_block_in_bio != blocks[0] - 1)
-		bio = mpage_bio_submit(WRITE, bio);
+		bio = mpage_bio_submit(wr, bio);
 
 alloc_new:
 	if (bio == NULL) {
@@ -612,7 +613,7 @@ alloc_new:
 	 */
 	length = first_unmapped << blkbits;
 	if (bio_add_page(bio, page, length, 0) < length) {
-		bio = mpage_bio_submit(WRITE, bio);
+		bio = mpage_bio_submit(wr, bio);
 		goto alloc_new;
 	}
 
@@ -622,7 +623,7 @@ alloc_new:
 	set_page_writeback(page);
 	unlock_page(page);
 	if (boundary || (first_unmapped != blocks_per_page)) {
-		bio = mpage_bio_submit(WRITE, bio);
+		bio = mpage_bio_submit(wr, bio);
 		if (boundary_block) {
 			write_boundary_block(boundary_bdev,
 					boundary_block, 1 << blkbits);
@@ -634,7 +635,7 @@ alloc_new:
 
 confused:
 	if (bio)
-		bio = mpage_bio_submit(WRITE, bio);
+		bio = mpage_bio_submit(wr, bio);
 
 	if (mpd->use_writepage) {
 		ret = mapping->a_ops->writepage(page, wbc);
@@ -690,8 +691,11 @@ mpage_writepages(struct address_space *mapping,
 		};
 
 		ret = write_cache_pages(mapping, wbc, __mpage_writepage, &mpd);
-		if (mpd.bio)
-			mpage_bio_submit(WRITE, mpd.bio);
+		if (mpd.bio) {
+			int wr = (wbc->sync_mode == WB_SYNC_ALL ?
+				  WRITE_SYNC : WRITE);
+			mpage_bio_submit(wr, mpd.bio);
+		}
 	}
 	blk_finish_plug(&plug);
 	return ret;
@@ -708,8 +712,11 @@ int mpage_writepage(struct page *page, get_block_t get_block,
 		.use_writepage = 0,
 	};
 	int ret = __mpage_writepage(page, wbc, &mpd);
-	if (mpd.bio)
-		mpage_bio_submit(WRITE, mpd.bio);
+	if (mpd.bio) {
+		int wr = (wbc->sync_mode == WB_SYNC_ALL ?
+			  WRITE_SYNC : WRITE);
+		mpage_bio_submit(wr, mpd.bio);
+	}
 	return ret;
 }
 EXPORT_SYMBOL(mpage_writepage);
diff --git a/fs/namespace.c b/fs/namespace.c
index b10db3d69943..019ff81536a2 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -845,7 +845,7 @@ static void commit_tree(struct mount *mnt, struct mount *shadows)
 	list_splice(&head, n->list.prev);
 
 	if (shadows)
-		hlist_add_after_rcu(&shadows->mnt_hash, &mnt->mnt_hash);
+		hlist_add_behind_rcu(&mnt->mnt_hash, &shadows->mnt_hash);
 	else
 		hlist_add_head_rcu(&mnt->mnt_hash,
 				m_hash(&parent->mnt, mnt->mnt_mountpoint));
diff --git a/fs/nilfs2/Makefile b/fs/nilfs2/Makefile
index 85c98737a146..fc603e0431bb 100644
--- a/fs/nilfs2/Makefile
+++ b/fs/nilfs2/Makefile
@@ -2,4 +2,4 @@ obj-$(CONFIG_NILFS2_FS) += nilfs2.o
 nilfs2-y := inode.o file.o dir.o super.o namei.o page.o mdt.o \
 	btnode.o bmap.o btree.o direct.o dat.o recovery.o \
 	the_nilfs.o segbuf.o segment.o cpfile.o sufile.o \
-	ifile.o alloc.o gcinode.o ioctl.o
+	ifile.o alloc.o gcinode.o ioctl.o sysfs.o
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 9bc72dec3fa6..0696161bf59d 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -320,6 +320,14 @@ int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *);
 int nilfs_init_gcinode(struct inode *inode);
 void nilfs_remove_all_gcinodes(struct the_nilfs *nilfs);
 
+/* sysfs.c */
+int __init nilfs_sysfs_init(void);
+void nilfs_sysfs_exit(void);
+int nilfs_sysfs_create_device_group(struct super_block *);
+void nilfs_sysfs_delete_device_group(struct the_nilfs *);
+int nilfs_sysfs_create_snapshot_group(struct nilfs_root *);
+void nilfs_sysfs_delete_snapshot_group(struct nilfs_root *);
+
 /*
  * Inodes and files operations
  */
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 8c532b2ca3ab..48c9ce8c983d 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -1014,7 +1014,7 @@ int nilfs_checkpoint_is_mounted(struct super_block *sb, __u64 cno)
 	struct dentry *dentry;
 	int ret;
 
-	if (cno < 0 || cno > nilfs->ns_cno)
+	if (cno > nilfs->ns_cno)
 		return false;
 
 	if (cno >= nilfs_last_cno(nilfs))
@@ -1452,13 +1452,19 @@ static int __init init_nilfs_fs(void)
 	if (err)
 		goto fail;
 
-	err = register_filesystem(&nilfs_fs_type);
+	err = nilfs_sysfs_init();
 	if (err)
 		goto free_cachep;
 
+	err = register_filesystem(&nilfs_fs_type);
+	if (err)
+		goto deinit_sysfs_entry;
+
 	printk(KERN_INFO "NILFS version 2 loaded\n");
 	return 0;
 
+deinit_sysfs_entry:
+	nilfs_sysfs_exit();
 free_cachep:
 	nilfs_destroy_cachep();
 fail:
@@ -1468,6 +1474,7 @@ fail:
 static void __exit exit_nilfs_fs(void)
 {
 	nilfs_destroy_cachep();
+	nilfs_sysfs_exit();
 	unregister_filesystem(&nilfs_fs_type);
 }
 
diff --git a/fs/nilfs2/sysfs.c b/fs/nilfs2/sysfs.c
new file mode 100644
index 000000000000..bbb0dcc35905
--- /dev/null
+++ b/fs/nilfs2/sysfs.c
@@ -0,0 +1,1137 @@
+/*
+ * sysfs.c - sysfs support implementation.
+ *
+ * Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation.
+ * Copyright (C) 2014 HGST, Inc., a Western Digital Company.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Written by Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>
+ */
+
+#include <linux/kobject.h>
+
+#include "nilfs.h"
+#include "mdt.h"
+#include "sufile.h"
+#include "cpfile.h"
+#include "sysfs.h"
+
+/* /sys/fs/<nilfs>/ */
+static struct kset *nilfs_kset;
+
+#define NILFS_SHOW_TIME(time_t_val, buf) ({ \
+		struct tm res; \
+		int count = 0; \
+		time_to_tm(time_t_val, 0, &res); \
+		res.tm_year += 1900; \
+		res.tm_mon += 1; \
+		count = scnprintf(buf, PAGE_SIZE, \
+				    "%ld-%.2d-%.2d %.2d:%.2d:%.2d\n", \
+				    res.tm_year, res.tm_mon, res.tm_mday, \
+				    res.tm_hour, res.tm_min, res.tm_sec);\
+		count; \
+})
+
+#define NILFS_DEV_INT_GROUP_OPS(name, parent_name) \
+static ssize_t nilfs_##name##_attr_show(struct kobject *kobj, \
+					struct attribute *attr, char *buf) \
+{ \
+	struct the_nilfs *nilfs = container_of(kobj->parent, \
+						struct the_nilfs, \
+						ns_##parent_name##_kobj); \
+	struct nilfs_##name##_attr *a = container_of(attr, \
+						struct nilfs_##name##_attr, \
+						attr); \
+	return a->show ? a->show(a, nilfs, buf) : 0; \
+} \
+static ssize_t nilfs_##name##_attr_store(struct kobject *kobj, \
+					 struct attribute *attr, \
+					 const char *buf, size_t len) \
+{ \
+	struct the_nilfs *nilfs = container_of(kobj->parent, \
+						struct the_nilfs, \
+						ns_##parent_name##_kobj); \
+	struct nilfs_##name##_attr *a = container_of(attr, \
+						struct nilfs_##name##_attr, \
+						attr); \
+	return a->store ? a->store(a, nilfs, buf, len) : 0; \
+} \
+static const struct sysfs_ops nilfs_##name##_attr_ops = { \
+	.show	= nilfs_##name##_attr_show, \
+	.store	= nilfs_##name##_attr_store, \
+};
+
+#define NILFS_DEV_INT_GROUP_TYPE(name, parent_name) \
+static void nilfs_##name##_attr_release(struct kobject *kobj) \
+{ \
+	struct nilfs_sysfs_##parent_name##_subgroups *subgroups; \
+	struct the_nilfs *nilfs = container_of(kobj->parent, \
+						struct the_nilfs, \
+						ns_##parent_name##_kobj); \
+	subgroups = nilfs->ns_##parent_name##_subgroups; \
+	complete(&subgroups->sg_##name##_kobj_unregister); \
+} \
+static struct kobj_type nilfs_##name##_ktype = { \
+	.default_attrs	= nilfs_##name##_attrs, \
+	.sysfs_ops	= &nilfs_##name##_attr_ops, \
+	.release	= nilfs_##name##_attr_release, \
+};
+
+#define NILFS_DEV_INT_GROUP_FNS(name, parent_name) \
+static int nilfs_sysfs_create_##name##_group(struct the_nilfs *nilfs) \
+{ \
+	struct kobject *parent; \
+	struct kobject *kobj; \
+	struct completion *kobj_unregister; \
+	struct nilfs_sysfs_##parent_name##_subgroups *subgroups; \
+	int err; \
+	subgroups = nilfs->ns_##parent_name##_subgroups; \
+	kobj = &subgroups->sg_##name##_kobj; \
+	kobj_unregister = &subgroups->sg_##name##_kobj_unregister; \
+	parent = &nilfs->ns_##parent_name##_kobj; \
+	kobj->kset = nilfs_kset; \
+	init_completion(kobj_unregister); \
+	err = kobject_init_and_add(kobj, &nilfs_##name##_ktype, parent, \
+				    #name); \
+	if (err) \
+		return err; \
+	return 0; \
+} \
+static void nilfs_sysfs_delete_##name##_group(struct the_nilfs *nilfs) \
+{ \
+	kobject_del(&nilfs->ns_##parent_name##_subgroups->sg_##name##_kobj); \
+}
+
+/************************************************************************
+ *                        NILFS snapshot attrs                          *
+ ************************************************************************/
+
+static ssize_t
+nilfs_snapshot_inodes_count_show(struct nilfs_snapshot_attr *attr,
+				 struct nilfs_root *root, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%llu\n",
+			(unsigned long long)atomic64_read(&root->inodes_count));
+}
+
+static ssize_t
+nilfs_snapshot_blocks_count_show(struct nilfs_snapshot_attr *attr,
+				 struct nilfs_root *root, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%llu\n",
+			(unsigned long long)atomic64_read(&root->blocks_count));
+}
+
+static const char snapshot_readme_str[] =
+	"The group contains details about mounted snapshot.\n\n"
+	"(1) inodes_count\n\tshow number of inodes for snapshot.\n\n"
+	"(2) blocks_count\n\tshow number of blocks for snapshot.\n\n";
+
+static ssize_t
+nilfs_snapshot_README_show(struct nilfs_snapshot_attr *attr,
+			    struct nilfs_root *root, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, snapshot_readme_str);
+}
+
+NILFS_SNAPSHOT_RO_ATTR(inodes_count);
+NILFS_SNAPSHOT_RO_ATTR(blocks_count);
+NILFS_SNAPSHOT_RO_ATTR(README);
+
+static struct attribute *nilfs_snapshot_attrs[] = {
+	NILFS_SNAPSHOT_ATTR_LIST(inodes_count),
+	NILFS_SNAPSHOT_ATTR_LIST(blocks_count),
+	NILFS_SNAPSHOT_ATTR_LIST(README),
+	NULL,
+};
+
+static ssize_t nilfs_snapshot_attr_show(struct kobject *kobj,
+					struct attribute *attr, char *buf)
+{
+	struct nilfs_root *root =
+			container_of(kobj, struct nilfs_root, snapshot_kobj);
+	struct nilfs_snapshot_attr *a =
+			container_of(attr, struct nilfs_snapshot_attr, attr);
+
+	return a->show ? a->show(a, root, buf) : 0;
+}
+
+static ssize_t nilfs_snapshot_attr_store(struct kobject *kobj,
+					 struct attribute *attr,
+					 const char *buf, size_t len)
+{
+	struct nilfs_root *root =
+			container_of(kobj, struct nilfs_root, snapshot_kobj);
+	struct nilfs_snapshot_attr *a =
+			container_of(attr, struct nilfs_snapshot_attr, attr);
+
+	return a->store ? a->store(a, root, buf, len) : 0;
+}
+
+static void nilfs_snapshot_attr_release(struct kobject *kobj)
+{
+	struct nilfs_root *root = container_of(kobj, struct nilfs_root,
+						snapshot_kobj);
+	complete(&root->snapshot_kobj_unregister);
+}
+
+static const struct sysfs_ops nilfs_snapshot_attr_ops = {
+	.show	= nilfs_snapshot_attr_show,
+	.store	= nilfs_snapshot_attr_store,
+};
+
+static struct kobj_type nilfs_snapshot_ktype = {
+	.default_attrs	= nilfs_snapshot_attrs,
+	.sysfs_ops	= &nilfs_snapshot_attr_ops,
+	.release	= nilfs_snapshot_attr_release,
+};
+
+int nilfs_sysfs_create_snapshot_group(struct nilfs_root *root)
+{
+	struct the_nilfs *nilfs;
+	struct kobject *parent;
+	int err;
+
+	nilfs = root->nilfs;
+	parent = &nilfs->ns_dev_subgroups->sg_mounted_snapshots_kobj;
+	root->snapshot_kobj.kset = nilfs_kset;
+	init_completion(&root->snapshot_kobj_unregister);
+
+	if (root->cno == NILFS_CPTREE_CURRENT_CNO) {
+		err = kobject_init_and_add(&root->snapshot_kobj,
+					    &nilfs_snapshot_ktype,
+					    &nilfs->ns_dev_kobj,
+					    "current_checkpoint");
+	} else {
+		err = kobject_init_and_add(&root->snapshot_kobj,
+					    &nilfs_snapshot_ktype,
+					    parent,
+					    "%llu", root->cno);
+	}
+
+	if (err)
+		return err;
+
+	return 0;
+}
+
+void nilfs_sysfs_delete_snapshot_group(struct nilfs_root *root)
+{
+	kobject_del(&root->snapshot_kobj);
+}
+
+/************************************************************************
+ *                    NILFS mounted snapshots attrs                     *
+ ************************************************************************/
+
+static const char mounted_snapshots_readme_str[] =
+	"The mounted_snapshots group contains group for\n"
+	"every mounted snapshot.\n";
+
+static ssize_t
+nilfs_mounted_snapshots_README_show(struct nilfs_mounted_snapshots_attr *attr,
+				    struct the_nilfs *nilfs, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, mounted_snapshots_readme_str);
+}
+
+NILFS_MOUNTED_SNAPSHOTS_RO_ATTR(README);
+
+static struct attribute *nilfs_mounted_snapshots_attrs[] = {
+	NILFS_MOUNTED_SNAPSHOTS_ATTR_LIST(README),
+	NULL,
+};
+
+NILFS_DEV_INT_GROUP_OPS(mounted_snapshots, dev);
+NILFS_DEV_INT_GROUP_TYPE(mounted_snapshots, dev);
+NILFS_DEV_INT_GROUP_FNS(mounted_snapshots, dev);
+
+/************************************************************************
+ *                      NILFS checkpoints attrs                         *
+ ************************************************************************/
+
+static ssize_t
+nilfs_checkpoints_checkpoints_number_show(struct nilfs_checkpoints_attr *attr,
+					    struct the_nilfs *nilfs,
+					    char *buf)
+{
+	__u64 ncheckpoints;
+	struct nilfs_cpstat cpstat;
+	int err;
+
+	down_read(&nilfs->ns_segctor_sem);
+	err = nilfs_cpfile_get_stat(nilfs->ns_cpfile, &cpstat);
+	up_read(&nilfs->ns_segctor_sem);
+	if (err < 0) {
+		printk(KERN_ERR "NILFS: unable to get checkpoint stat: err=%d\n",
+			err);
+		return err;
+	}
+
+	ncheckpoints = cpstat.cs_ncps;
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", ncheckpoints);
+}
+
+static ssize_t
+nilfs_checkpoints_snapshots_number_show(struct nilfs_checkpoints_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	__u64 nsnapshots;
+	struct nilfs_cpstat cpstat;
+	int err;
+
+	down_read(&nilfs->ns_segctor_sem);
+	err = nilfs_cpfile_get_stat(nilfs->ns_cpfile, &cpstat);
+	up_read(&nilfs->ns_segctor_sem);
+	if (err < 0) {
+		printk(KERN_ERR "NILFS: unable to get checkpoint stat: err=%d\n",
+			err);
+		return err;
+	}
+
+	nsnapshots = cpstat.cs_nsss;
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", nsnapshots);
+}
+
+static ssize_t
+nilfs_checkpoints_last_seg_checkpoint_show(struct nilfs_checkpoints_attr *attr,
+					    struct the_nilfs *nilfs,
+					    char *buf)
+{
+	__u64 last_cno;
+
+	spin_lock(&nilfs->ns_last_segment_lock);
+	last_cno = nilfs->ns_last_cno;
+	spin_unlock(&nilfs->ns_last_segment_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", last_cno);
+}
+
+static ssize_t
+nilfs_checkpoints_next_checkpoint_show(struct nilfs_checkpoints_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	__u64 cno;
+
+	down_read(&nilfs->ns_sem);
+	cno = nilfs->ns_cno;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", cno);
+}
+
+static const char checkpoints_readme_str[] =
+	"The checkpoints group contains attributes that describe\n"
+	"details about volume's checkpoints.\n\n"
+	"(1) checkpoints_number\n\tshow number of checkpoints on volume.\n\n"
+	"(2) snapshots_number\n\tshow number of snapshots on volume.\n\n"
+	"(3) last_seg_checkpoint\n"
+	"\tshow checkpoint number of the latest segment.\n\n"
+	"(4) next_checkpoint\n\tshow next checkpoint number.\n\n";
+
+static ssize_t
+nilfs_checkpoints_README_show(struct nilfs_checkpoints_attr *attr,
+				struct the_nilfs *nilfs, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, checkpoints_readme_str);
+}
+
+NILFS_CHECKPOINTS_RO_ATTR(checkpoints_number);
+NILFS_CHECKPOINTS_RO_ATTR(snapshots_number);
+NILFS_CHECKPOINTS_RO_ATTR(last_seg_checkpoint);
+NILFS_CHECKPOINTS_RO_ATTR(next_checkpoint);
+NILFS_CHECKPOINTS_RO_ATTR(README);
+
+static struct attribute *nilfs_checkpoints_attrs[] = {
+	NILFS_CHECKPOINTS_ATTR_LIST(checkpoints_number),
+	NILFS_CHECKPOINTS_ATTR_LIST(snapshots_number),
+	NILFS_CHECKPOINTS_ATTR_LIST(last_seg_checkpoint),
+	NILFS_CHECKPOINTS_ATTR_LIST(next_checkpoint),
+	NILFS_CHECKPOINTS_ATTR_LIST(README),
+	NULL,
+};
+
+NILFS_DEV_INT_GROUP_OPS(checkpoints, dev);
+NILFS_DEV_INT_GROUP_TYPE(checkpoints, dev);
+NILFS_DEV_INT_GROUP_FNS(checkpoints, dev);
+
+/************************************************************************
+ *                        NILFS segments attrs                          *
+ ************************************************************************/
+
+static ssize_t
+nilfs_segments_segments_number_show(struct nilfs_segments_attr *attr,
+				     struct the_nilfs *nilfs,
+				     char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%lu\n", nilfs->ns_nsegments);
+}
+
+static ssize_t
+nilfs_segments_blocks_per_segment_show(struct nilfs_segments_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%lu\n", nilfs->ns_blocks_per_segment);
+}
+
+static ssize_t
+nilfs_segments_clean_segments_show(struct nilfs_segments_attr *attr,
+				    struct the_nilfs *nilfs,
+				    char *buf)
+{
+	unsigned long ncleansegs;
+
+	down_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
+	ncleansegs = nilfs_sufile_get_ncleansegs(nilfs->ns_sufile);
+	up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%lu\n", ncleansegs);
+}
+
+static ssize_t
+nilfs_segments_dirty_segments_show(struct nilfs_segments_attr *attr,
+				    struct the_nilfs *nilfs,
+				    char *buf)
+{
+	struct nilfs_sustat sustat;
+	int err;
+
+	down_read(&nilfs->ns_segctor_sem);
+	err = nilfs_sufile_get_stat(nilfs->ns_sufile, &sustat);
+	up_read(&nilfs->ns_segctor_sem);
+	if (err < 0) {
+		printk(KERN_ERR "NILFS: unable to get segment stat: err=%d\n",
+			err);
+		return err;
+	}
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", sustat.ss_ndirtysegs);
+}
+
+static const char segments_readme_str[] =
+	"The segments group contains attributes that describe\n"
+	"details about volume's segments.\n\n"
+	"(1) segments_number\n\tshow number of segments on volume.\n\n"
+	"(2) blocks_per_segment\n\tshow number of blocks in segment.\n\n"
+	"(3) clean_segments\n\tshow count of clean segments.\n\n"
+	"(4) dirty_segments\n\tshow count of dirty segments.\n\n";
+
+static ssize_t
+nilfs_segments_README_show(struct nilfs_segments_attr *attr,
+			    struct the_nilfs *nilfs,
+			    char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, segments_readme_str);
+}
+
+NILFS_SEGMENTS_RO_ATTR(segments_number);
+NILFS_SEGMENTS_RO_ATTR(blocks_per_segment);
+NILFS_SEGMENTS_RO_ATTR(clean_segments);
+NILFS_SEGMENTS_RO_ATTR(dirty_segments);
+NILFS_SEGMENTS_RO_ATTR(README);
+
+static struct attribute *nilfs_segments_attrs[] = {
+	NILFS_SEGMENTS_ATTR_LIST(segments_number),
+	NILFS_SEGMENTS_ATTR_LIST(blocks_per_segment),
+	NILFS_SEGMENTS_ATTR_LIST(clean_segments),
+	NILFS_SEGMENTS_ATTR_LIST(dirty_segments),
+	NILFS_SEGMENTS_ATTR_LIST(README),
+	NULL,
+};
+
+NILFS_DEV_INT_GROUP_OPS(segments, dev);
+NILFS_DEV_INT_GROUP_TYPE(segments, dev);
+NILFS_DEV_INT_GROUP_FNS(segments, dev);
+
+/************************************************************************
+ *                        NILFS segctor attrs                           *
+ ************************************************************************/
+
+static ssize_t
+nilfs_segctor_last_pseg_block_show(struct nilfs_segctor_attr *attr,
+				    struct the_nilfs *nilfs,
+				    char *buf)
+{
+	sector_t last_pseg;
+
+	spin_lock(&nilfs->ns_last_segment_lock);
+	last_pseg = nilfs->ns_last_pseg;
+	spin_unlock(&nilfs->ns_last_segment_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n",
+			(unsigned long long)last_pseg);
+}
+
+static ssize_t
+nilfs_segctor_last_seg_sequence_show(struct nilfs_segctor_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	u64 last_seq;
+
+	spin_lock(&nilfs->ns_last_segment_lock);
+	last_seq = nilfs->ns_last_seq;
+	spin_unlock(&nilfs->ns_last_segment_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", last_seq);
+}
+
+static ssize_t
+nilfs_segctor_last_seg_checkpoint_show(struct nilfs_segctor_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	__u64 last_cno;
+
+	spin_lock(&nilfs->ns_last_segment_lock);
+	last_cno = nilfs->ns_last_cno;
+	spin_unlock(&nilfs->ns_last_segment_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", last_cno);
+}
+
+static ssize_t
+nilfs_segctor_current_seg_sequence_show(struct nilfs_segctor_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	u64 seg_seq;
+
+	down_read(&nilfs->ns_sem);
+	seg_seq = nilfs->ns_seg_seq;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", seg_seq);
+}
+
+static ssize_t
+nilfs_segctor_current_last_full_seg_show(struct nilfs_segctor_attr *attr,
+					 struct the_nilfs *nilfs,
+					 char *buf)
+{
+	__u64 segnum;
+
+	down_read(&nilfs->ns_sem);
+	segnum = nilfs->ns_segnum;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", segnum);
+}
+
+static ssize_t
+nilfs_segctor_next_full_seg_show(struct nilfs_segctor_attr *attr,
+				 struct the_nilfs *nilfs,
+				 char *buf)
+{
+	__u64 nextnum;
+
+	down_read(&nilfs->ns_sem);
+	nextnum = nilfs->ns_nextnum;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", nextnum);
+}
+
+static ssize_t
+nilfs_segctor_next_pseg_offset_show(struct nilfs_segctor_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	unsigned long pseg_offset;
+
+	down_read(&nilfs->ns_sem);
+	pseg_offset = nilfs->ns_pseg_offset;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%lu\n", pseg_offset);
+}
+
+static ssize_t
+nilfs_segctor_next_checkpoint_show(struct nilfs_segctor_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	__u64 cno;
+
+	down_read(&nilfs->ns_sem);
+	cno = nilfs->ns_cno;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", cno);
+}
+
+static ssize_t
+nilfs_segctor_last_seg_write_time_show(struct nilfs_segctor_attr *attr,
+					struct the_nilfs *nilfs,
+					char *buf)
+{
+	time_t ctime;
+
+	down_read(&nilfs->ns_sem);
+	ctime = nilfs->ns_ctime;
+	up_read(&nilfs->ns_sem);
+
+	return NILFS_SHOW_TIME(ctime, buf);
+}
+
+static ssize_t
+nilfs_segctor_last_seg_write_time_secs_show(struct nilfs_segctor_attr *attr,
+					    struct the_nilfs *nilfs,
+					    char *buf)
+{
+	time_t ctime;
+
+	down_read(&nilfs->ns_sem);
+	ctime = nilfs->ns_ctime;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", (unsigned long long)ctime);
+}
+
+static ssize_t
+nilfs_segctor_last_nongc_write_time_show(struct nilfs_segctor_attr *attr,
+					 struct the_nilfs *nilfs,
+					 char *buf)
+{
+	time_t nongc_ctime;
+
+	down_read(&nilfs->ns_sem);
+	nongc_ctime = nilfs->ns_nongc_ctime;
+	up_read(&nilfs->ns_sem);
+
+	return NILFS_SHOW_TIME(nongc_ctime, buf);
+}
+
+static ssize_t
+nilfs_segctor_last_nongc_write_time_secs_show(struct nilfs_segctor_attr *attr,
+						struct the_nilfs *nilfs,
+						char *buf)
+{
+	time_t nongc_ctime;
+
+	down_read(&nilfs->ns_sem);
+	nongc_ctime = nilfs->ns_nongc_ctime;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n",
+			(unsigned long long)nongc_ctime);
+}
+
+static ssize_t
+nilfs_segctor_dirty_data_blocks_count_show(struct nilfs_segctor_attr *attr,
+					    struct the_nilfs *nilfs,
+					    char *buf)
+{
+	u32 ndirtyblks;
+
+	down_read(&nilfs->ns_sem);
+	ndirtyblks = atomic_read(&nilfs->ns_ndirtyblks);
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%u\n", ndirtyblks);
+}
+
+static const char segctor_readme_str[] =
+	"The segctor group contains attributes that describe\n"
+	"segctor thread activity details.\n\n"
+	"(1) last_pseg_block\n"
+	"\tshow start block number of the latest segment.\n\n"
+	"(2) last_seg_sequence\n"
+	"\tshow sequence value of the latest segment.\n\n"
+	"(3) last_seg_checkpoint\n"
+	"\tshow checkpoint number of the latest segment.\n\n"
+	"(4) current_seg_sequence\n\tshow segment sequence counter.\n\n"
+	"(5) current_last_full_seg\n"
+	"\tshow index number of the latest full segment.\n\n"
+	"(6) next_full_seg\n"
+	"\tshow index number of the full segment index to be used next.\n\n"
+	"(7) next_pseg_offset\n"
+	"\tshow offset of next partial segment in the current full segment.\n\n"
+	"(8) next_checkpoint\n\tshow next checkpoint number.\n\n"
+	"(9) last_seg_write_time\n"
+	"\tshow write time of the last segment in human-readable format.\n\n"
+	"(10) last_seg_write_time_secs\n"
+	"\tshow write time of the last segment in seconds.\n\n"
+	"(11) last_nongc_write_time\n"
+	"\tshow write time of the last segment not for cleaner operation "
+	"in human-readable format.\n\n"
+	"(12) last_nongc_write_time_secs\n"
+	"\tshow write time of the last segment not for cleaner operation "
+	"in seconds.\n\n"
+	"(13) dirty_data_blocks_count\n"
+	"\tshow number of dirty data blocks.\n\n";
+
+static ssize_t
+nilfs_segctor_README_show(struct nilfs_segctor_attr *attr,
+			  struct the_nilfs *nilfs, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, segctor_readme_str);
+}
+
+NILFS_SEGCTOR_RO_ATTR(last_pseg_block);
+NILFS_SEGCTOR_RO_ATTR(last_seg_sequence);
+NILFS_SEGCTOR_RO_ATTR(last_seg_checkpoint);
+NILFS_SEGCTOR_RO_ATTR(current_seg_sequence);
+NILFS_SEGCTOR_RO_ATTR(current_last_full_seg);
+NILFS_SEGCTOR_RO_ATTR(next_full_seg);
+NILFS_SEGCTOR_RO_ATTR(next_pseg_offset);
+NILFS_SEGCTOR_RO_ATTR(next_checkpoint);
+NILFS_SEGCTOR_RO_ATTR(last_seg_write_time);
+NILFS_SEGCTOR_RO_ATTR(last_seg_write_time_secs);
+NILFS_SEGCTOR_RO_ATTR(last_nongc_write_time);
+NILFS_SEGCTOR_RO_ATTR(last_nongc_write_time_secs);
+NILFS_SEGCTOR_RO_ATTR(dirty_data_blocks_count);
+NILFS_SEGCTOR_RO_ATTR(README);
+
+static struct attribute *nilfs_segctor_attrs[] = {
+	NILFS_SEGCTOR_ATTR_LIST(last_pseg_block),
+	NILFS_SEGCTOR_ATTR_LIST(last_seg_sequence),
+	NILFS_SEGCTOR_ATTR_LIST(last_seg_checkpoint),
+	NILFS_SEGCTOR_ATTR_LIST(current_seg_sequence),
+	NILFS_SEGCTOR_ATTR_LIST(current_last_full_seg),
+	NILFS_SEGCTOR_ATTR_LIST(next_full_seg),
+	NILFS_SEGCTOR_ATTR_LIST(next_pseg_offset),
+	NILFS_SEGCTOR_ATTR_LIST(next_checkpoint),
+	NILFS_SEGCTOR_ATTR_LIST(last_seg_write_time),
+	NILFS_SEGCTOR_ATTR_LIST(last_seg_write_time_secs),
+	NILFS_SEGCTOR_ATTR_LIST(last_nongc_write_time),
+	NILFS_SEGCTOR_ATTR_LIST(last_nongc_write_time_secs),
+	NILFS_SEGCTOR_ATTR_LIST(dirty_data_blocks_count),
+	NILFS_SEGCTOR_ATTR_LIST(README),
+	NULL,
+};
+
+NILFS_DEV_INT_GROUP_OPS(segctor, dev);
+NILFS_DEV_INT_GROUP_TYPE(segctor, dev);
+NILFS_DEV_INT_GROUP_FNS(segctor, dev);
+
+/************************************************************************
+ *                        NILFS superblock attrs                        *
+ ************************************************************************/
+
+static ssize_t
+nilfs_superblock_sb_write_time_show(struct nilfs_superblock_attr *attr,
+				     struct the_nilfs *nilfs,
+				     char *buf)
+{
+	time_t sbwtime;
+
+	down_read(&nilfs->ns_sem);
+	sbwtime = nilfs->ns_sbwtime;
+	up_read(&nilfs->ns_sem);
+
+	return NILFS_SHOW_TIME(sbwtime, buf);
+}
+
+static ssize_t
+nilfs_superblock_sb_write_time_secs_show(struct nilfs_superblock_attr *attr,
+					 struct the_nilfs *nilfs,
+					 char *buf)
+{
+	time_t sbwtime;
+
+	down_read(&nilfs->ns_sem);
+	sbwtime = nilfs->ns_sbwtime;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", (unsigned long long)sbwtime);
+}
+
+static ssize_t
+nilfs_superblock_sb_write_count_show(struct nilfs_superblock_attr *attr,
+				      struct the_nilfs *nilfs,
+				      char *buf)
+{
+	unsigned sbwcount;
+
+	down_read(&nilfs->ns_sem);
+	sbwcount = nilfs->ns_sbwcount;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%u\n", sbwcount);
+}
+
+static ssize_t
+nilfs_superblock_sb_update_frequency_show(struct nilfs_superblock_attr *attr,
+					    struct the_nilfs *nilfs,
+					    char *buf)
+{
+	unsigned sb_update_freq;
+
+	down_read(&nilfs->ns_sem);
+	sb_update_freq = nilfs->ns_sb_update_freq;
+	up_read(&nilfs->ns_sem);
+
+	return snprintf(buf, PAGE_SIZE, "%u\n", sb_update_freq);
+}
+
+static ssize_t
+nilfs_superblock_sb_update_frequency_store(struct nilfs_superblock_attr *attr,
+					    struct the_nilfs *nilfs,
+					    const char *buf, size_t count)
+{
+	unsigned val;
+	int err;
+
+	err = kstrtouint(skip_spaces(buf), 0, &val);
+	if (err) {
+		printk(KERN_ERR "NILFS: unable to convert string: err=%d\n",
+			err);
+		return err;
+	}
+
+	if (val < NILFS_SB_FREQ) {
+		val = NILFS_SB_FREQ;
+		printk(KERN_WARNING "NILFS: superblock update frequency cannot be lesser than 10 seconds\n");
+	}
+
+	down_write(&nilfs->ns_sem);
+	nilfs->ns_sb_update_freq = val;
+	up_write(&nilfs->ns_sem);
+
+	return count;
+}
+
+static const char sb_readme_str[] =
+	"The superblock group contains attributes that describe\n"
+	"superblock's details.\n\n"
+	"(1) sb_write_time\n\tshow previous write time of super block "
+	"in human-readable format.\n\n"
+	"(2) sb_write_time_secs\n\tshow previous write time of super block "
+	"in seconds.\n\n"
+	"(3) sb_write_count\n\tshow write count of super block.\n\n"
+	"(4) sb_update_frequency\n"
+	"\tshow/set interval of periodical update of superblock (in seconds).\n\n"
+	"\tYou can set preferable frequency of superblock update by command:\n\n"
+	"\t'echo <val> > /sys/fs/<nilfs>/<dev>/superblock/sb_update_frequency'\n";
+
+static ssize_t
+nilfs_superblock_README_show(struct nilfs_superblock_attr *attr,
+				struct the_nilfs *nilfs, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, sb_readme_str);
+}
+
+NILFS_SUPERBLOCK_RO_ATTR(sb_write_time);
+NILFS_SUPERBLOCK_RO_ATTR(sb_write_time_secs);
+NILFS_SUPERBLOCK_RO_ATTR(sb_write_count);
+NILFS_SUPERBLOCK_RW_ATTR(sb_update_frequency);
+NILFS_SUPERBLOCK_RO_ATTR(README);
+
+static struct attribute *nilfs_superblock_attrs[] = {
+	NILFS_SUPERBLOCK_ATTR_LIST(sb_write_time),
+	NILFS_SUPERBLOCK_ATTR_LIST(sb_write_time_secs),
+	NILFS_SUPERBLOCK_ATTR_LIST(sb_write_count),
+	NILFS_SUPERBLOCK_ATTR_LIST(sb_update_frequency),
+	NILFS_SUPERBLOCK_ATTR_LIST(README),
+	NULL,
+};
+
+NILFS_DEV_INT_GROUP_OPS(superblock, dev);
+NILFS_DEV_INT_GROUP_TYPE(superblock, dev);
+NILFS_DEV_INT_GROUP_FNS(superblock, dev);
+
+/************************************************************************
+ *                        NILFS device attrs                            *
+ ************************************************************************/
+
+static
+ssize_t nilfs_dev_revision_show(struct nilfs_dev_attr *attr,
+				struct the_nilfs *nilfs,
+				char *buf)
+{
+	struct nilfs_super_block **sbp = nilfs->ns_sbp;
+	u32 major = le32_to_cpu(sbp[0]->s_rev_level);
+	u16 minor = le16_to_cpu(sbp[0]->s_minor_rev_level);
+
+	return snprintf(buf, PAGE_SIZE, "%d.%d\n", major, minor);
+}
+
+static
+ssize_t nilfs_dev_blocksize_show(struct nilfs_dev_attr *attr,
+				 struct the_nilfs *nilfs,
+				 char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%u\n", nilfs->ns_blocksize);
+}
+
+static
+ssize_t nilfs_dev_device_size_show(struct nilfs_dev_attr *attr,
+				    struct the_nilfs *nilfs,
+				    char *buf)
+{
+	struct nilfs_super_block **sbp = nilfs->ns_sbp;
+	u64 dev_size = le64_to_cpu(sbp[0]->s_dev_size);
+
+	return snprintf(buf, PAGE_SIZE, "%llu\n", dev_size);
+}
+
+static
+ssize_t nilfs_dev_free_blocks_show(struct nilfs_dev_attr *attr,
+				   struct the_nilfs *nilfs,
+				   char *buf)
+{
+	sector_t free_blocks = 0;
+
+	nilfs_count_free_blocks(nilfs, &free_blocks);
+	return snprintf(buf, PAGE_SIZE, "%llu\n",
+			(unsigned long long)free_blocks);
+}
+
+static
+ssize_t nilfs_dev_uuid_show(struct nilfs_dev_attr *attr,
+			    struct the_nilfs *nilfs,
+			    char *buf)
+{
+	struct nilfs_super_block **sbp = nilfs->ns_sbp;
+
+	return snprintf(buf, PAGE_SIZE, "%pUb\n", sbp[0]->s_uuid);
+}
+
+static
+ssize_t nilfs_dev_volume_name_show(struct nilfs_dev_attr *attr,
+				    struct the_nilfs *nilfs,
+				    char *buf)
+{
+	struct nilfs_super_block **sbp = nilfs->ns_sbp;
+
+	return scnprintf(buf, sizeof(sbp[0]->s_volume_name), "%s\n",
+			 sbp[0]->s_volume_name);
+}
+
+static const char dev_readme_str[] =
+	"The <device> group contains attributes that describe file system\n"
+	"partition's details.\n\n"
+	"(1) revision\n\tshow NILFS file system revision.\n\n"
+	"(2) blocksize\n\tshow volume block size in bytes.\n\n"
+	"(3) device_size\n\tshow volume size in bytes.\n\n"
+	"(4) free_blocks\n\tshow count of free blocks on volume.\n\n"
+	"(5) uuid\n\tshow volume's UUID.\n\n"
+	"(6) volume_name\n\tshow volume's name.\n\n";
+
+static ssize_t nilfs_dev_README_show(struct nilfs_dev_attr *attr,
+				     struct the_nilfs *nilfs,
+				     char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, dev_readme_str);
+}
+
+NILFS_DEV_RO_ATTR(revision);
+NILFS_DEV_RO_ATTR(blocksize);
+NILFS_DEV_RO_ATTR(device_size);
+NILFS_DEV_RO_ATTR(free_blocks);
+NILFS_DEV_RO_ATTR(uuid);
+NILFS_DEV_RO_ATTR(volume_name);
+NILFS_DEV_RO_ATTR(README);
+
+static struct attribute *nilfs_dev_attrs[] = {
+	NILFS_DEV_ATTR_LIST(revision),
+	NILFS_DEV_ATTR_LIST(blocksize),
+	NILFS_DEV_ATTR_LIST(device_size),
+	NILFS_DEV_ATTR_LIST(free_blocks),
+	NILFS_DEV_ATTR_LIST(uuid),
+	NILFS_DEV_ATTR_LIST(volume_name),
+	NILFS_DEV_ATTR_LIST(README),
+	NULL,
+};
+
+static ssize_t nilfs_dev_attr_show(struct kobject *kobj,
+				    struct attribute *attr, char *buf)
+{
+	struct the_nilfs *nilfs = container_of(kobj, struct the_nilfs,
+						ns_dev_kobj);
+	struct nilfs_dev_attr *a = container_of(attr, struct nilfs_dev_attr,
+						attr);
+
+	return a->show ? a->show(a, nilfs, buf) : 0;
+}
+
+static ssize_t nilfs_dev_attr_store(struct kobject *kobj,
+				    struct attribute *attr,
+				    const char *buf, size_t len)
+{
+	struct the_nilfs *nilfs = container_of(kobj, struct the_nilfs,
+						ns_dev_kobj);
+	struct nilfs_dev_attr *a = container_of(attr, struct nilfs_dev_attr,
+						attr);
+
+	return a->store ? a->store(a, nilfs, buf, len) : 0;
+}
+
+static void nilfs_dev_attr_release(struct kobject *kobj)
+{
+	struct the_nilfs *nilfs = container_of(kobj, struct the_nilfs,
+						ns_dev_kobj);
+	complete(&nilfs->ns_dev_kobj_unregister);
+}
+
+static const struct sysfs_ops nilfs_dev_attr_ops = {
+	.show	= nilfs_dev_attr_show,
+	.store	= nilfs_dev_attr_store,
+};
+
+static struct kobj_type nilfs_dev_ktype = {
+	.default_attrs	= nilfs_dev_attrs,
+	.sysfs_ops	= &nilfs_dev_attr_ops,
+	.release	= nilfs_dev_attr_release,
+};
+
+int nilfs_sysfs_create_device_group(struct super_block *sb)
+{
+	struct the_nilfs *nilfs = sb->s_fs_info;
+	size_t devgrp_size = sizeof(struct nilfs_sysfs_dev_subgroups);
+	int err;
+
+	nilfs->ns_dev_subgroups = kzalloc(devgrp_size, GFP_KERNEL);
+	if (unlikely(!nilfs->ns_dev_subgroups)) {
+		err = -ENOMEM;
+		printk(KERN_ERR "NILFS: unable to allocate memory for device group\n");
+		goto failed_create_device_group;
+	}
+
+	nilfs->ns_dev_kobj.kset = nilfs_kset;
+	init_completion(&nilfs->ns_dev_kobj_unregister);
+	err = kobject_init_and_add(&nilfs->ns_dev_kobj, &nilfs_dev_ktype, NULL,
+				    "%s", sb->s_id);
+	if (err)
+		goto free_dev_subgroups;
+
+	err = nilfs_sysfs_create_mounted_snapshots_group(nilfs);
+	if (err)
+		goto cleanup_dev_kobject;
+
+	err = nilfs_sysfs_create_checkpoints_group(nilfs);
+	if (err)
+		goto delete_mounted_snapshots_group;
+
+	err = nilfs_sysfs_create_segments_group(nilfs);
+	if (err)
+		goto delete_checkpoints_group;
+
+	err = nilfs_sysfs_create_superblock_group(nilfs);
+	if (err)
+		goto delete_segments_group;
+
+	err = nilfs_sysfs_create_segctor_group(nilfs);
+	if (err)
+		goto delete_superblock_group;
+
+	return 0;
+
+delete_superblock_group:
+	nilfs_sysfs_delete_superblock_group(nilfs);
+
+delete_segments_group:
+	nilfs_sysfs_delete_segments_group(nilfs);
+
+delete_checkpoints_group:
+	nilfs_sysfs_delete_checkpoints_group(nilfs);
+
+delete_mounted_snapshots_group:
+	nilfs_sysfs_delete_mounted_snapshots_group(nilfs);
+
+cleanup_dev_kobject:
+	kobject_del(&nilfs->ns_dev_kobj);
+
+free_dev_subgroups:
+	kfree(nilfs->ns_dev_subgroups);
+
+failed_create_device_group:
+	return err;
+}
+
+void nilfs_sysfs_delete_device_group(struct the_nilfs *nilfs)
+{
+	nilfs_sysfs_delete_mounted_snapshots_group(nilfs);
+	nilfs_sysfs_delete_checkpoints_group(nilfs);
+	nilfs_sysfs_delete_segments_group(nilfs);
+	nilfs_sysfs_delete_superblock_group(nilfs);
+	nilfs_sysfs_delete_segctor_group(nilfs);
+	kobject_del(&nilfs->ns_dev_kobj);
+	kfree(nilfs->ns_dev_subgroups);
+}
+
+/************************************************************************
+ *                        NILFS feature attrs                           *
+ ************************************************************************/
+
+static ssize_t nilfs_feature_revision_show(struct kobject *kobj,
+					    struct attribute *attr, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d.%d\n",
+			NILFS_CURRENT_REV, NILFS_MINOR_REV);
+}
+
+static const char features_readme_str[] =
+	"The features group contains attributes that describe NILFS file\n"
+	"system driver features.\n\n"
+	"(1) revision\n\tshow current revision of NILFS file system driver.\n";
+
+static ssize_t nilfs_feature_README_show(struct kobject *kobj,
+					 struct attribute *attr,
+					 char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, features_readme_str);
+}
+
+NILFS_FEATURE_RO_ATTR(revision);
+NILFS_FEATURE_RO_ATTR(README);
+
+static struct attribute *nilfs_feature_attrs[] = {
+	NILFS_FEATURE_ATTR_LIST(revision),
+	NILFS_FEATURE_ATTR_LIST(README),
+	NULL,
+};
+
+static const struct attribute_group nilfs_feature_attr_group = {
+	.name = "features",
+	.attrs = nilfs_feature_attrs,
+};
+
+int __init nilfs_sysfs_init(void)
+{
+	int err;
+
+	nilfs_kset = kset_create_and_add(NILFS_ROOT_GROUP_NAME, NULL, fs_kobj);
+	if (!nilfs_kset) {
+		err = -ENOMEM;
+		printk(KERN_ERR "NILFS: unable to create sysfs entry: err %d\n",
+			err);
+		goto failed_sysfs_init;
+	}
+
+	err = sysfs_create_group(&nilfs_kset->kobj, &nilfs_feature_attr_group);
+	if (unlikely(err)) {
+		printk(KERN_ERR "NILFS: unable to create feature group: err %d\n",
+			err);
+		goto cleanup_sysfs_init;
+	}
+
+	return 0;
+
+cleanup_sysfs_init:
+	kset_unregister(nilfs_kset);
+
+failed_sysfs_init:
+	return err;
+}
+
+void nilfs_sysfs_exit(void)
+{
+	sysfs_remove_group(&nilfs_kset->kobj, &nilfs_feature_attr_group);
+	kset_unregister(nilfs_kset);
+}
diff --git a/fs/nilfs2/sysfs.h b/fs/nilfs2/sysfs.h
new file mode 100644
index 000000000000..677e3a1a8370
--- /dev/null
+++ b/fs/nilfs2/sysfs.h
@@ -0,0 +1,176 @@
+/*
+ * sysfs.h - sysfs support declarations.
+ *
+ * Copyright (C) 2005-2014 Nippon Telegraph and Telephone Corporation.
+ * Copyright (C) 2014 HGST, Inc., a Western Digital Company.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Written by Vyacheslav Dubeyko <Vyacheslav.Dubeyko@hgst.com>
+ */
+
+#ifndef _NILFS_SYSFS_H
+#define _NILFS_SYSFS_H
+
+#include <linux/sysfs.h>
+
+#define NILFS_ROOT_GROUP_NAME	"nilfs2"
+
+/*
+ * struct nilfs_sysfs_dev_subgroups - device subgroup kernel objects
+ * @sg_superblock_kobj: /sys/fs/<nilfs>/<device>/superblock
+ * @sg_superblock_kobj_unregister: completion state
+ * @sg_segctor_kobj: /sys/fs/<nilfs>/<device>/segctor
+ * @sg_segctor_kobj_unregister: completion state
+ * @sg_mounted_snapshots_kobj: /sys/fs/<nilfs>/<device>/mounted_snapshots
+ * @sg_mounted_snapshots_kobj_unregister: completion state
+ * @sg_checkpoints_kobj: /sys/fs/<nilfs>/<device>/checkpoints
+ * @sg_checkpoints_kobj_unregister: completion state
+ * @sg_segments_kobj: /sys/fs/<nilfs>/<device>/segments
+ * @sg_segments_kobj_unregister: completion state
+ */
+struct nilfs_sysfs_dev_subgroups {
+	/* /sys/fs/<nilfs>/<device>/superblock */
+	struct kobject sg_superblock_kobj;
+	struct completion sg_superblock_kobj_unregister;
+
+	/* /sys/fs/<nilfs>/<device>/segctor */
+	struct kobject sg_segctor_kobj;
+	struct completion sg_segctor_kobj_unregister;
+
+	/* /sys/fs/<nilfs>/<device>/mounted_snapshots */
+	struct kobject sg_mounted_snapshots_kobj;
+	struct completion sg_mounted_snapshots_kobj_unregister;
+
+	/* /sys/fs/<nilfs>/<device>/checkpoints */
+	struct kobject sg_checkpoints_kobj;
+	struct completion sg_checkpoints_kobj_unregister;
+
+	/* /sys/fs/<nilfs>/<device>/segments */
+	struct kobject sg_segments_kobj;
+	struct completion sg_segments_kobj_unregister;
+};
+
+#define NILFS_COMMON_ATTR_STRUCT(name) \
+struct nilfs_##name##_attr { \
+	struct attribute attr; \
+	ssize_t (*show)(struct kobject *, struct attribute *, \
+			char *); \
+	ssize_t (*store)(struct kobject *, struct attribute *, \
+			 const char *, size_t); \
+};
+
+NILFS_COMMON_ATTR_STRUCT(feature);
+
+#define NILFS_DEV_ATTR_STRUCT(name) \
+struct nilfs_##name##_attr { \
+	struct attribute attr; \
+	ssize_t (*show)(struct nilfs_##name##_attr *, struct the_nilfs *, \
+			char *); \
+	ssize_t (*store)(struct nilfs_##name##_attr *, struct the_nilfs *, \
+			 const char *, size_t); \
+};
+
+NILFS_DEV_ATTR_STRUCT(dev);
+NILFS_DEV_ATTR_STRUCT(segments);
+NILFS_DEV_ATTR_STRUCT(mounted_snapshots);
+NILFS_DEV_ATTR_STRUCT(checkpoints);
+NILFS_DEV_ATTR_STRUCT(superblock);
+NILFS_DEV_ATTR_STRUCT(segctor);
+
+#define NILFS_CP_ATTR_STRUCT(name) \
+struct nilfs_##name##_attr { \
+	struct attribute attr; \
+	ssize_t (*show)(struct nilfs_##name##_attr *, struct nilfs_root *, \
+			char *); \
+	ssize_t (*store)(struct nilfs_##name##_attr *, struct nilfs_root *, \
+			 const char *, size_t); \
+};
+
+NILFS_CP_ATTR_STRUCT(snapshot);
+
+#define NILFS_ATTR(type, name, mode, show, store) \
+	static struct nilfs_##type##_attr nilfs_##type##_attr_##name = \
+		__ATTR(name, mode, show, store)
+
+#define NILFS_INFO_ATTR(type, name) \
+	NILFS_ATTR(type, name, 0444, NULL, NULL)
+#define NILFS_RO_ATTR(type, name) \
+	NILFS_ATTR(type, name, 0444, nilfs_##type##_##name##_show, NULL)
+#define NILFS_RW_ATTR(type, name) \
+	NILFS_ATTR(type, name, 0644, \
+		    nilfs_##type##_##name##_show, \
+		    nilfs_##type##_##name##_store)
+
+#define NILFS_FEATURE_INFO_ATTR(name) \
+	NILFS_INFO_ATTR(feature, name)
+#define NILFS_FEATURE_RO_ATTR(name) \
+	NILFS_RO_ATTR(feature, name)
+#define NILFS_FEATURE_RW_ATTR(name) \
+	NILFS_RW_ATTR(feature, name)
+
+#define NILFS_DEV_INFO_ATTR(name) \
+	NILFS_INFO_ATTR(dev, name)
+#define NILFS_DEV_RO_ATTR(name) \
+	NILFS_RO_ATTR(dev, name)
+#define NILFS_DEV_RW_ATTR(name) \
+	NILFS_RW_ATTR(dev, name)
+
+#define NILFS_SEGMENTS_RO_ATTR(name) \
+	NILFS_RO_ATTR(segments, name)
+#define NILFS_SEGMENTS_RW_ATTR(name) \
+	NILFS_RW_ATTR(segs_info, name)
+
+#define NILFS_MOUNTED_SNAPSHOTS_RO_ATTR(name) \
+	NILFS_RO_ATTR(mounted_snapshots, name)
+
+#define NILFS_CHECKPOINTS_RO_ATTR(name) \
+	NILFS_RO_ATTR(checkpoints, name)
+#define NILFS_CHECKPOINTS_RW_ATTR(name) \
+	NILFS_RW_ATTR(checkpoints, name)
+
+#define NILFS_SNAPSHOT_INFO_ATTR(name) \
+	NILFS_INFO_ATTR(snapshot, name)
+#define NILFS_SNAPSHOT_RO_ATTR(name) \
+	NILFS_RO_ATTR(snapshot, name)
+#define NILFS_SNAPSHOT_RW_ATTR(name) \
+	NILFS_RW_ATTR(snapshot, name)
+
+#define NILFS_SUPERBLOCK_RO_ATTR(name) \
+	NILFS_RO_ATTR(superblock, name)
+#define NILFS_SUPERBLOCK_RW_ATTR(name) \
+	NILFS_RW_ATTR(superblock, name)
+
+#define NILFS_SEGCTOR_INFO_ATTR(name) \
+	NILFS_INFO_ATTR(segctor, name)
+#define NILFS_SEGCTOR_RO_ATTR(name) \
+	NILFS_RO_ATTR(segctor, name)
+#define NILFS_SEGCTOR_RW_ATTR(name) \
+	NILFS_RW_ATTR(segctor, name)
+
+#define NILFS_FEATURE_ATTR_LIST(name) \
+	(&nilfs_feature_attr_##name.attr)
+#define NILFS_DEV_ATTR_LIST(name) \
+	(&nilfs_dev_attr_##name.attr)
+#define NILFS_SEGMENTS_ATTR_LIST(name) \
+	(&nilfs_segments_attr_##name.attr)
+#define NILFS_MOUNTED_SNAPSHOTS_ATTR_LIST(name) \
+	(&nilfs_mounted_snapshots_attr_##name.attr)
+#define NILFS_CHECKPOINTS_ATTR_LIST(name) \
+	(&nilfs_checkpoints_attr_##name.attr)
+#define NILFS_SNAPSHOT_ATTR_LIST(name) \
+	(&nilfs_snapshot_attr_##name.attr)
+#define NILFS_SUPERBLOCK_ATTR_LIST(name) \
+	(&nilfs_superblock_attr_##name.attr)
+#define NILFS_SEGCTOR_ATTR_LIST(name) \
+	(&nilfs_segctor_attr_##name.attr)
+
+#endif /* _NILFS_SYSFS_H */
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 8ba8229ba076..9da25fe9ea61 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -85,6 +85,7 @@ struct the_nilfs *alloc_nilfs(struct block_device *bdev)
 	nilfs->ns_cptree = RB_ROOT;
 	spin_lock_init(&nilfs->ns_cptree_lock);
 	init_rwsem(&nilfs->ns_segctor_sem);
+	nilfs->ns_sb_update_freq = NILFS_SB_FREQ;
 
 	return nilfs;
 }
@@ -97,6 +98,7 @@ void destroy_nilfs(struct the_nilfs *nilfs)
 {
 	might_sleep();
 	if (nilfs_init(nilfs)) {
+		nilfs_sysfs_delete_device_group(nilfs);
 		brelse(nilfs->ns_sbh[0]);
 		brelse(nilfs->ns_sbh[1]);
 	}
@@ -640,6 +642,10 @@ int init_nilfs(struct the_nilfs *nilfs, struct super_block *sb, char *data)
 	if (err)
 		goto failed_sbh;
 
+	err = nilfs_sysfs_create_device_group(sb);
+	if (err)
+		goto failed_sbh;
+
 	set_nilfs_init(nilfs);
 	err = 0;
  out:
@@ -740,12 +746,13 @@ nilfs_find_or_create_root(struct the_nilfs *nilfs, __u64 cno)
 {
 	struct rb_node **p, *parent;
 	struct nilfs_root *root, *new;
+	int err;
 
 	root = nilfs_lookup_root(nilfs, cno);
 	if (root)
 		return root;
 
-	new = kmalloc(sizeof(*root), GFP_KERNEL);
+	new = kzalloc(sizeof(*root), GFP_KERNEL);
 	if (!new)
 		return NULL;
 
@@ -782,6 +789,12 @@ nilfs_find_or_create_root(struct the_nilfs *nilfs, __u64 cno)
 
 	spin_unlock(&nilfs->ns_cptree_lock);
 
+	err = nilfs_sysfs_create_snapshot_group(new);
+	if (err) {
+		kfree(new);
+		new = NULL;
+	}
+
 	return new;
 }
 
@@ -790,6 +803,8 @@ void nilfs_put_root(struct nilfs_root *root)
 	if (atomic_dec_and_test(&root->count)) {
 		struct the_nilfs *nilfs = root->nilfs;
 
+		nilfs_sysfs_delete_snapshot_group(root);
+
 		spin_lock(&nilfs->ns_cptree_lock);
 		rb_erase(&root->rb_node, &nilfs->ns_cptree);
 		spin_unlock(&nilfs->ns_cptree_lock);
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index de8cc53b4a5c..d01ead1bea9a 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 
 struct nilfs_sc_info;
+struct nilfs_sysfs_dev_subgroups;
 
 /* the_nilfs struct */
 enum {
@@ -54,6 +55,7 @@ enum {
  * @ns_sbwcount: write count of super block
  * @ns_sbsize: size of valid data in super block
  * @ns_mount_state: file system state
+ * @ns_sb_update_freq: interval of periodical update of superblocks (in seconds)
  * @ns_seg_seq: segment sequence counter
  * @ns_segnum: index number of the latest full segment.
  * @ns_nextnum: index number of the full segment index to be used next
@@ -95,6 +97,9 @@ enum {
  * @ns_inode_size: size of on-disk inode
  * @ns_first_ino: first not-special inode number
  * @ns_crc_seed: seed value of CRC32 calculation
+ * @ns_dev_kobj: /sys/fs/<nilfs>/<device>
+ * @ns_dev_kobj_unregister: completion state
+ * @ns_dev_subgroups: <device> subgroups pointer
  */
 struct the_nilfs {
 	unsigned long		ns_flags;
@@ -114,6 +119,7 @@ struct the_nilfs {
 	unsigned		ns_sbwcount;
 	unsigned		ns_sbsize;
 	unsigned		ns_mount_state;
+	unsigned		ns_sb_update_freq;
 
 	/*
 	 * Following fields are dedicated to a writable FS-instance.
@@ -188,6 +194,11 @@ struct the_nilfs {
 	int			ns_inode_size;
 	int			ns_first_ino;
 	u32			ns_crc_seed;
+
+	/* /sys/fs/<nilfs>/<device> */
+	struct kobject ns_dev_kobj;
+	struct completion ns_dev_kobj_unregister;
+	struct nilfs_sysfs_dev_subgroups *ns_dev_subgroups;
 };
 
 #define THE_NILFS_FNS(bit, name)					\
@@ -232,6 +243,8 @@ THE_NILFS_FNS(SB_DIRTY, sb_dirty)
  * @ifile: inode file
  * @inodes_count: number of inodes
  * @blocks_count: number of blocks
+ * @snapshot_kobj: /sys/fs/<nilfs>/<device>/mounted_snapshots/<snapshot>
+ * @snapshot_kobj_unregister: completion state for kernel object
  */
 struct nilfs_root {
 	__u64 cno;
@@ -243,6 +256,10 @@ struct nilfs_root {
 
 	atomic64_t inodes_count;
 	atomic64_t blocks_count;
+
+	/* /sys/fs/<nilfs>/<device>/mounted_snapshots/<snapshot> */
+	struct kobject snapshot_kobj;
+	struct completion snapshot_kobj_unregister;
 };
 
 /* Special checkpoint number */
@@ -254,7 +271,8 @@ struct nilfs_root {
 static inline int nilfs_sb_need_update(struct the_nilfs *nilfs)
 {
 	u64 t = get_seconds();
-	return t < nilfs->ns_sbwtime || t > nilfs->ns_sbwtime + NILFS_SB_FREQ;
+	return t < nilfs->ns_sbwtime ||
+		t > nilfs->ns_sbwtime + nilfs->ns_sb_update_freq;
 }
 
 static inline int nilfs_sb_will_flip(struct the_nilfs *nilfs)
diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c
index 74825be65b7b..9ce062218de9 100644
--- a/fs/notify/inode_mark.c
+++ b/fs/notify/inode_mark.c
@@ -232,7 +232,7 @@ int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
 
 	BUG_ON(last == NULL);
 	/* mark should be the last entry.  last is the current last entry */
-	hlist_add_after_rcu(&last->i.i_list, &mark->i.i_list);
+	hlist_add_behind_rcu(&mark->i.i_list, &last->i.i_list);
 out:
 	fsnotify_recalc_inode_mask_locked(inode);
 	spin_unlock(&inode->i_lock);
diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c
index 68ca5a8704b5..ac851e8376b1 100644
--- a/fs/notify/vfsmount_mark.c
+++ b/fs/notify/vfsmount_mark.c
@@ -191,7 +191,7 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
 
 	BUG_ON(last == NULL);
 	/* mark should be the last entry.  last is the current last entry */
-	hlist_add_after_rcu(&last->m.m_list, &mark->m.m_list);
+	hlist_add_behind_rcu(&mark->m.m_list, &last->m.m_list);
 out:
 	fsnotify_recalc_vfsmount_mask_locked(mnt);
 	spin_unlock(&mnt->mnt_root->d_lock);
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 5c9e2c81cb11..f5ec1ce7a532 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -74,8 +74,6 @@ static int ntfs_file_open(struct inode *vi, struct file *filp)
  * ntfs_attr_extend_initialized - extend the initialized size of an attribute
  * @ni:			ntfs inode of the attribute to extend
  * @new_init_size:	requested new initialized size in bytes
- * @cached_page:	store any allocated but unused page here
- * @lru_pvec:		lru-buffering pagevec of the caller
  *
  * Extend the initialized size of an attribute described by the ntfs inode @ni
  * to @new_init_size bytes.  This involves zeroing any non-sparse space between
@@ -395,7 +393,6 @@ static inline void ntfs_fault_in_pages_readable_iovec(const struct iovec *iov,
  * @nr_pages:	number of page cache pages to obtain
  * @pages:	array of pages in which to return the obtained page cache pages
  * @cached_page: allocated but as yet unused page
- * @lru_pvec:	lru-buffering pagevec of caller
  *
  * Obtain @nr_pages locked page cache pages from the mapping @mapping and
  * starting at index @index.
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 9d8fcf2f3b94..a93bf9892256 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -4961,6 +4961,15 @@ leftright:
 
 		el = path_leaf_el(path);
 		split_index = ocfs2_search_extent_list(el, cpos);
+		if (split_index == -1) {
+			ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
+					"Owner %llu has an extent at cpos %u "
+					"which can no longer be found.\n",
+					(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
+					cpos);
+			ret = -EROFS;
+			goto out;
+		}
 		goto leftright;
 	}
 out:
@@ -5135,7 +5144,7 @@ int ocfs2_change_extent_flag(handle_t *handle,
 	el = path_leaf_el(left_path);
 
 	index = ocfs2_search_extent_list(el, cpos);
-	if (index == -1 || index >= le16_to_cpu(el->l_next_free_rec)) {
+	if (index == -1) {
 		ocfs2_error(sb,
 			    "Owner %llu has an extent at cpos %u which can no "
 			    "longer be found.\n",
@@ -5491,7 +5500,7 @@ int ocfs2_remove_extent(handle_t *handle,
 
 	el = path_leaf_el(path);
 	index = ocfs2_search_extent_list(el, cpos);
-	if (index == -1 || index >= le16_to_cpu(el->l_next_free_rec)) {
+	if (index == -1) {
 		ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
 			    "Owner %llu has an extent at cpos %u which can no "
 			    "longer be found.\n",
@@ -5557,7 +5566,7 @@ int ocfs2_remove_extent(handle_t *handle,
 
 		el = path_leaf_el(path);
 		index = ocfs2_search_extent_list(el, cpos);
-		if (index == -1 || index >= le16_to_cpu(el->l_next_free_rec)) {
+		if (index == -1) {
 			ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
 				    "Owner %llu: split at cpos %u lost record.",
 				    (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 4a231a166cf8..a06b23773384 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1817,16 +1817,6 @@ try_again:
 		if (ret)
 			goto out_commit;
 	}
-	/*
-	 * We don't want this to fail in ocfs2_write_end(), so do it
-	 * here.
-	 */
-	ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh,
-				      OCFS2_JOURNAL_ACCESS_WRITE);
-	if (ret) {
-		mlog_errno(ret);
-		goto out_quota;
-	}
 
 	/*
 	 * Fill our page array first. That way we've grabbed enough so
@@ -1977,7 +1967,7 @@ int ocfs2_write_end_nolock(struct address_space *mapping,
 			   loff_t pos, unsigned len, unsigned copied,
 			   struct page *page, void *fsdata)
 {
-	int i;
+	int i, ret;
 	unsigned from, to, start = pos & (PAGE_CACHE_SIZE - 1);
 	struct inode *inode = mapping->host;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
@@ -2027,6 +2017,14 @@ int ocfs2_write_end_nolock(struct address_space *mapping,
 		}
 	}
 
+	ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), wc->w_di_bh,
+				      OCFS2_JOURNAL_ACCESS_WRITE);
+	if (ret) {
+		copied = ret;
+		mlog_errno(ret);
+		goto out;
+	}
+
 out_write_size:
 	pos += copied;
 	if (pos > i_size_read(inode)) {
@@ -2041,6 +2039,7 @@ out_write_size:
 	ocfs2_update_inode_fsync_trans(handle, inode, 1);
 	ocfs2_journal_dirty(handle, wc->w_di_bh);
 
+out:
 	ocfs2_commit_trans(osb, handle);
 
 	ocfs2_run_deallocs(osb, &wc->w_dealloc);
diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c
index 1ec141e758d7..62e8ec619b4c 100644
--- a/fs/ocfs2/cluster/quorum.c
+++ b/fs/ocfs2/cluster/quorum.c
@@ -160,9 +160,18 @@ static void o2quo_make_decision(struct work_struct *work)
 	}
 
 out:
-	spin_unlock(&qs->qs_lock);
-	if (fence)
+	if (fence) {
+		spin_unlock(&qs->qs_lock);
 		o2quo_fence_self();
+	} else {
+		mlog(ML_NOTICE, "not fencing this node, heartbeating: %d, "
+			"connected: %d, lowest: %d (%sreachable)\n",
+			qs->qs_heartbeating, qs->qs_connected, lowest_hb,
+			lowest_reachable ? "" : "un");
+		spin_unlock(&qs->qs_lock);
+
+	}
+
 }
 
 static void o2quo_set_hold(struct o2quo_state *qs, u8 node)
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 681691bc233a..ea34952f9496 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1480,6 +1480,14 @@ static int o2net_set_nodelay(struct socket *sock)
 	return ret;
 }
 
+static int o2net_set_usertimeout(struct socket *sock)
+{
+	int user_timeout = O2NET_TCP_USER_TIMEOUT;
+
+	return kernel_setsockopt(sock, SOL_TCP, TCP_USER_TIMEOUT,
+				(char *)&user_timeout, sizeof(user_timeout));
+}
+
 static void o2net_initialize_handshake(void)
 {
 	o2net_hand->o2hb_heartbeat_timeout_ms = cpu_to_be32(
@@ -1536,16 +1544,20 @@ static void o2net_idle_timer(unsigned long data)
 #endif
 
 	printk(KERN_NOTICE "o2net: Connection to " SC_NODEF_FMT " has been "
-	       "idle for %lu.%lu secs, shutting it down.\n", SC_NODEF_ARGS(sc),
-	       msecs / 1000, msecs % 1000);
+	       "idle for %lu.%lu secs.\n",
+	       SC_NODEF_ARGS(sc), msecs / 1000, msecs % 1000);
 
-	/*
-	 * Initialize the nn_timeout so that the next connection attempt
-	 * will continue in o2net_start_connect.
+	/* idle timerout happen, don't shutdown the connection, but
+	 * make fence decision. Maybe the connection can recover before
+	 * the decision is made.
 	 */
 	atomic_set(&nn->nn_timeout, 1);
+	o2quo_conn_err(o2net_num_from_nn(nn));
+	queue_delayed_work(o2net_wq, &nn->nn_still_up,
+			msecs_to_jiffies(O2NET_QUORUM_DELAY_MS));
+
+	o2net_sc_reset_idle_timer(sc);
 
-	o2net_sc_queue_work(sc, &sc->sc_shutdown_work);
 }
 
 static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc)
@@ -1560,6 +1572,15 @@ static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc)
 
 static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
 {
+	struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num);
+
+	/* clear fence decision since the connection recover from timeout*/
+	if (atomic_read(&nn->nn_timeout)) {
+		o2quo_conn_up(o2net_num_from_nn(nn));
+		cancel_delayed_work(&nn->nn_still_up);
+		atomic_set(&nn->nn_timeout, 0);
+	}
+
 	/* Only push out an existing timer */
 	if (timer_pending(&sc->sc_idle_timeout))
 		o2net_sc_reset_idle_timer(sc);
@@ -1650,6 +1671,12 @@ static void o2net_start_connect(struct work_struct *work)
 		goto out;
 	}
 
+	ret = o2net_set_usertimeout(sock);
+	if (ret) {
+		mlog(ML_ERROR, "set TCP_USER_TIMEOUT failed with %d\n", ret);
+		goto out;
+	}
+
 	o2net_register_callbacks(sc->sc_sock->sk, sc);
 
 	spin_lock(&nn->nn_lock);
@@ -1831,6 +1858,12 @@ static int o2net_accept_one(struct socket *sock, int *more)
 		goto out;
 	}
 
+	ret = o2net_set_usertimeout(new_sock);
+	if (ret) {
+		mlog(ML_ERROR, "set TCP_USER_TIMEOUT failed with %d\n", ret);
+		goto out;
+	}
+
 	slen = sizeof(sin);
 	ret = new_sock->ops->getname(new_sock, (struct sockaddr *) &sin,
 				       &slen, 1);
diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h
index 5bada2a69b50..c571e849fda4 100644
--- a/fs/ocfs2/cluster/tcp.h
+++ b/fs/ocfs2/cluster/tcp.h
@@ -63,6 +63,7 @@ typedef void (o2net_post_msg_handler_func)(int status, void *data,
 #define O2NET_KEEPALIVE_DELAY_MS_DEFAULT	2000
 #define O2NET_IDLE_TIMEOUT_MS_DEFAULT		30000
 
+#define O2NET_TCP_USER_TIMEOUT			0x7fffffff
 
 /* TODO: figure this out.... */
 static inline int o2net_link_down(int err, struct socket *sock)
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 39efc5057a36..3fcf205ee900 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -1923,12 +1923,11 @@ static int dlm_join_domain(struct dlm_ctxt *dlm)
 				goto bail;
 			}
 
-			if (total_backoff >
-			    msecs_to_jiffies(DLM_JOIN_TIMEOUT_MSECS)) {
+			if (total_backoff > DLM_JOIN_TIMEOUT_MSECS) {
 				status = -ERESTARTSYS;
 				mlog(ML_NOTICE, "Timed out joining dlm domain "
 				     "%s after %u msecs\n", dlm->name,
-				     jiffies_to_msecs(total_backoff));
+				     total_backoff);
 				goto bail;
 			}
 
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 82abf0cc9a12..0eb144db07ae 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -694,14 +694,6 @@ void __dlm_lockres_grab_inflight_worker(struct dlm_ctxt *dlm,
 			res->inflight_assert_workers);
 }
 
-static void dlm_lockres_grab_inflight_worker(struct dlm_ctxt *dlm,
-		struct dlm_lock_resource *res)
-{
-	spin_lock(&res->spinlock);
-	__dlm_lockres_grab_inflight_worker(dlm, res);
-	spin_unlock(&res->spinlock);
-}
-
 static void __dlm_lockres_drop_inflight_worker(struct dlm_ctxt *dlm,
 		struct dlm_lock_resource *res)
 {
@@ -1635,6 +1627,7 @@ send_response:
 		}
 		mlog(0, "%u is the owner of %.*s, cleaning everyone else\n",
 			     dlm->node_num, res->lockname.len, res->lockname.name);
+		spin_lock(&res->spinlock);
 		ret = dlm_dispatch_assert_master(dlm, res, 0, request->node_idx,
 						 DLM_ASSERT_MASTER_MLE_CLEANUP);
 		if (ret < 0) {
@@ -1642,7 +1635,8 @@ send_response:
 			response = DLM_MASTER_RESP_ERROR;
 			dlm_lockres_put(res);
 		} else
-			dlm_lockres_grab_inflight_worker(dlm, res);
+			__dlm_lockres_grab_inflight_worker(dlm, res);
+		spin_unlock(&res->spinlock);
 	} else {
 		if (res)
 			dlm_lockres_put(res);
@@ -2405,6 +2399,10 @@ static int dlm_is_lockres_migrateable(struct dlm_ctxt *dlm,
 	if (res->state & DLM_LOCK_RES_MIGRATING)
 		return 0;
 
+	/* delay migration when the lockres is in RECOCERING state */
+	if (res->state & DLM_LOCK_RES_RECOVERING)
+		return 0;
+
 	if (res->owner != dlm->node_num)
 		return 0;
 
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 437de7f768c6..21708cda4b8a 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -1192,17 +1192,9 @@ void ocfs2_evict_inode(struct inode *inode)
 int ocfs2_drop_inode(struct inode *inode)
 {
 	struct ocfs2_inode_info *oi = OCFS2_I(inode);
-	int res;
-
 	trace_ocfs2_drop_inode((unsigned long long)oi->ip_blkno,
 				inode->i_nlink, oi->ip_flags);
-
-	if (oi->ip_flags & OCFS2_INODE_MAYBE_ORPHANED)
-		res = 1;
-	else
-		res = generic_drop_inode(inode);
-
-	return res;
+	return 1;
 }
 
 /*
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 6f66b3751ace..53e6c40ed4c6 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -35,9 +35,8 @@
 		copy_to_user((typeof(a) __user *)b, &(a), sizeof(a))
 
 /*
- * This call is void because we are already reporting an error that may
- * be -EFAULT.  The error will be returned from the ioctl(2) call.  It's
- * just a best-effort to tell userspace that this request caused the error.
+ * This is just a best-effort to tell userspace that this request
+ * caused the error.
  */
 static inline void o2info_set_request_error(struct ocfs2_info_request *kreq,
 					struct ocfs2_info_request __user *req)
@@ -146,136 +145,105 @@ bail:
 static int ocfs2_info_handle_blocksize(struct inode *inode,
 				       struct ocfs2_info_request __user *req)
 {
-	int status = -EFAULT;
 	struct ocfs2_info_blocksize oib;
 
 	if (o2info_from_user(oib, req))
-		goto bail;
+		return -EFAULT;
 
 	oib.ib_blocksize = inode->i_sb->s_blocksize;
 
 	o2info_set_request_filled(&oib.ib_req);
 
 	if (o2info_to_user(oib, req))
-		goto bail;
-
-	status = 0;
-bail:
-	if (status)
-		o2info_set_request_error(&oib.ib_req, req);
+		return -EFAULT;
 
-	return status;
+	return 0;
 }
 
 static int ocfs2_info_handle_clustersize(struct inode *inode,
 					 struct ocfs2_info_request __user *req)
 {
-	int status = -EFAULT;
 	struct ocfs2_info_clustersize oic;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
 	if (o2info_from_user(oic, req))
-		goto bail;
+		return -EFAULT;
 
 	oic.ic_clustersize = osb->s_clustersize;
 
 	o2info_set_request_filled(&oic.ic_req);
 
 	if (o2info_to_user(oic, req))
-		goto bail;
-
-	status = 0;
-bail:
-	if (status)
-		o2info_set_request_error(&oic.ic_req, req);
+		return -EFAULT;
 
-	return status;
+	return 0;
 }
 
 static int ocfs2_info_handle_maxslots(struct inode *inode,
 				      struct ocfs2_info_request __user *req)
 {
-	int status = -EFAULT;
 	struct ocfs2_info_maxslots oim;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
 	if (o2info_from_user(oim, req))
-		goto bail;
+		return -EFAULT;
 
 	oim.im_max_slots = osb->max_slots;
 
 	o2info_set_request_filled(&oim.im_req);
 
 	if (o2info_to_user(oim, req))
-		goto bail;
+		return -EFAULT;
 
-	status = 0;
-bail:
-	if (status)
-		o2info_set_request_error(&oim.im_req, req);
-
-	return status;
+	return 0;
 }
 
 static int ocfs2_info_handle_label(struct inode *inode,
 				   struct ocfs2_info_request __user *req)
 {
-	int status = -EFAULT;
 	struct ocfs2_info_label oil;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
 	if (o2info_from_user(oil, req))
-		goto bail;
+		return -EFAULT;
 
 	memcpy(oil.il_label, osb->vol_label, OCFS2_MAX_VOL_LABEL_LEN);
 
 	o2info_set_request_filled(&oil.il_req);
 
 	if (o2info_to_user(oil, req))
-		goto bail;
+		return -EFAULT;
 
-	status = 0;
-bail:
-	if (status)
-		o2info_set_request_error(&oil.il_req, req);
-
-	return status;
+	return 0;
 }
 
 static int ocfs2_info_handle_uuid(struct inode *inode,
 				  struct ocfs2_info_request __user *req)
 {
-	int status = -EFAULT;
 	struct ocfs2_info_uuid oiu;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
 	if (o2info_from_user(oiu, req))
-		goto bail;
+		return -EFAULT;
 
 	memcpy(oiu.iu_uuid_str, osb->uuid_str, OCFS2_TEXT_UUID_LEN + 1);
 
 	o2info_set_request_filled(&oiu.iu_req);
 
 	if (o2info_to_user(oiu, req))
-		goto bail;
-
-	status = 0;
-bail:
-	if (status)
-		o2info_set_request_error(&oiu.iu_req, req);
+		return -EFAULT;
 
-	return status;
+	return 0;
 }
 
 static int ocfs2_info_handle_fs_features(struct inode *inode,
 					 struct ocfs2_info_request __user *req)
 {
-	int status = -EFAULT;
 	struct ocfs2_info_fs_features oif;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
 	if (o2info_from_user(oif, req))
-		goto bail;
+		return -EFAULT;
 
 	oif.if_compat_features = osb->s_feature_compat;
 	oif.if_incompat_features = osb->s_feature_incompat;
@@ -284,39 +252,28 @@ static int ocfs2_info_handle_fs_features(struct inode *inode,
 	o2info_set_request_filled(&oif.if_req);
 
 	if (o2info_to_user(oif, req))
-		goto bail;
+		return -EFAULT;
 
-	status = 0;
-bail:
-	if (status)
-		o2info_set_request_error(&oif.if_req, req);
-
-	return status;
+	return 0;
 }
 
 static int ocfs2_info_handle_journal_size(struct inode *inode,
 					  struct ocfs2_info_request __user *req)
 {
-	int status = -EFAULT;
 	struct ocfs2_info_journal_size oij;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 
 	if (o2info_from_user(oij, req))
-		goto bail;
+		return -EFAULT;
 
 	oij.ij_journal_size = i_size_read(osb->journal->j_inode);
 
 	o2info_set_request_filled(&oij.ij_req);
 
 	if (o2info_to_user(oij, req))
-		goto bail;
+		return -EFAULT;
 
-	status = 0;
-bail:
-	if (status)
-		o2info_set_request_error(&oij.ij_req, req);
-
-	return status;
+	return 0;
 }
 
 static int ocfs2_info_scan_inode_alloc(struct ocfs2_super *osb,
@@ -373,7 +330,7 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
 	u32 i;
 	u64 blkno = -1;
 	char namebuf[40];
-	int status = -EFAULT, type = INODE_ALLOC_SYSTEM_INODE;
+	int status, type = INODE_ALLOC_SYSTEM_INODE;
 	struct ocfs2_info_freeinode *oifi = NULL;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 	struct inode *inode_alloc = NULL;
@@ -385,8 +342,10 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
 		goto out_err;
 	}
 
-	if (o2info_from_user(*oifi, req))
-		goto bail;
+	if (o2info_from_user(*oifi, req)) {
+		status = -EFAULT;
+		goto out_free;
+	}
 
 	oifi->ifi_slotnum = osb->max_slots;
 
@@ -424,14 +383,16 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
 
 	o2info_set_request_filled(&oifi->ifi_req);
 
-	if (o2info_to_user(*oifi, req))
-		goto bail;
+	if (o2info_to_user(*oifi, req)) {
+		status = -EFAULT;
+		goto out_free;
+	}
 
 	status = 0;
 bail:
 	if (status)
 		o2info_set_request_error(&oifi->ifi_req, req);
-
+out_free:
 	kfree(oifi);
 out_err:
 	return status;
@@ -658,7 +619,7 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
 {
 	u64 blkno = -1;
 	char namebuf[40];
-	int status = -EFAULT, type = GLOBAL_BITMAP_SYSTEM_INODE;
+	int status, type = GLOBAL_BITMAP_SYSTEM_INODE;
 
 	struct ocfs2_info_freefrag *oiff;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
@@ -671,8 +632,10 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
 		goto out_err;
 	}
 
-	if (o2info_from_user(*oiff, req))
-		goto bail;
+	if (o2info_from_user(*oiff, req)) {
+		status = -EFAULT;
+		goto out_free;
+	}
 	/*
 	 * chunksize from userspace should be power of 2.
 	 */
@@ -711,14 +674,14 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
 
 	if (o2info_to_user(*oiff, req)) {
 		status = -EFAULT;
-		goto bail;
+		goto out_free;
 	}
 
 	status = 0;
 bail:
 	if (status)
 		o2info_set_request_error(&oiff->iff_req, req);
-
+out_free:
 	kfree(oiff);
 out_err:
 	return status;
@@ -727,23 +690,17 @@ out_err:
 static int ocfs2_info_handle_unknown(struct inode *inode,
 				     struct ocfs2_info_request __user *req)
 {
-	int status = -EFAULT;
 	struct ocfs2_info_request oir;
 
 	if (o2info_from_user(oir, req))
-		goto bail;
+		return -EFAULT;
 
 	o2info_clear_request_filled(&oir);
 
 	if (o2info_to_user(oir, req))
-		goto bail;
+		return -EFAULT;
 
-	status = 0;
-bail:
-	if (status)
-		o2info_set_request_error(&oir, req);
-
-	return status;
+	return 0;
 }
 
 /*
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index 599eb4c4c8be..6219aaadeb08 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -98,7 +98,7 @@ static int __ocfs2_move_extent(handle_t *handle,
 	el = path_leaf_el(path);
 
 	index = ocfs2_search_extent_list(el, cpos);
-	if (index == -1 || index >= le16_to_cpu(el->l_next_free_rec)) {
+	if (index == -1) {
 		ocfs2_error(inode->i_sb,
 			    "Inode %llu has an extent at cpos %u which can no "
 			    "longer be found.\n",
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 636aab69ead5..d81f6e2a97f5 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -3109,7 +3109,7 @@ static int ocfs2_clear_ext_refcount(handle_t *handle,
 	el = path_leaf_el(path);
 
 	index = ocfs2_search_extent_list(el, cpos);
-	if (index == -1 || index >= le16_to_cpu(el->l_next_free_rec)) {
+	if (index == -1) {
 		ocfs2_error(sb,
 			    "Inode %llu has an extent at cpos %u which can no "
 			    "longer be found.\n",
diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index 1424c151cccc..a88b2a4fcc85 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -382,7 +382,7 @@ static int ocfs2_map_slot_buffers(struct ocfs2_super *osb,
 
 	trace_ocfs2_map_slot_buffers(bytes, si->si_blocks);
 
-	si->si_bh = kzalloc(sizeof(struct buffer_head *) * si->si_blocks,
+	si->si_bh = kcalloc(si->si_blocks, sizeof(struct buffer_head *),
 			    GFP_KERNEL);
 	if (!si->si_bh) {
 		status = -ENOMEM;
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index ec58c7659183..ba8819702c56 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -321,7 +321,7 @@ static int omfs_get_imap(struct super_block *sb)
 		goto out;
 
 	sbi->s_imap_size = array_size;
-	sbi->s_imap = kzalloc(array_size * sizeof(unsigned long *), GFP_KERNEL);
+	sbi->s_imap = kcalloc(array_size, sizeof(unsigned long *), GFP_KERNEL);
 	if (!sbi->s_imap)
 		goto nomem;
 
diff --git a/fs/proc/base.c b/fs/proc/base.c
index e442784ef74a..2105331d1f4c 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -105,7 +105,7 @@
  */
 
 struct pid_entry {
-	char *name;
+	const char *name;
 	int len;
 	umode_t mode;
 	const struct inode_operations *iop;
@@ -130,10 +130,6 @@ struct pid_entry {
 		{ .proc_get_link = get_link } )
 #define REG(NAME, MODE, fops)				\
 	NOD(NAME, (S_IFREG|(MODE)), NULL, &fops, {})
-#define INF(NAME, MODE, read)				\
-	NOD(NAME, (S_IFREG|(MODE)), 			\
-		NULL, &proc_info_file_operations,	\
-		{ .proc_read = read } )
 #define ONE(NAME, MODE, show)				\
 	NOD(NAME, (S_IFREG|(MODE)), 			\
 		NULL, &proc_single_file_operations,	\
@@ -200,27 +196,32 @@ static int proc_root_link(struct dentry *dentry, struct path *path)
 	return result;
 }
 
-static int proc_pid_cmdline(struct task_struct *task, char *buffer)
+static int proc_pid_cmdline(struct seq_file *m, struct pid_namespace *ns,
+			    struct pid *pid, struct task_struct *task)
 {
-	return get_cmdline(task, buffer, PAGE_SIZE);
+	/*
+	 * Rely on struct seq_operations::show() being called once
+	 * per internal buffer allocation. See single_open(), traverse().
+	 */
+	BUG_ON(m->size < PAGE_SIZE);
+	m->count += get_cmdline(task, m->buf, PAGE_SIZE);
+	return 0;
 }
 
-static int proc_pid_auxv(struct task_struct *task, char *buffer)
+static int proc_pid_auxv(struct seq_file *m, struct pid_namespace *ns,
+			 struct pid *pid, struct task_struct *task)
 {
 	struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
-	int res = PTR_ERR(mm);
 	if (mm && !IS_ERR(mm)) {
 		unsigned int nwords = 0;
 		do {
 			nwords += 2;
 		} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
-		res = nwords * sizeof(mm->saved_auxv[0]);
-		if (res > PAGE_SIZE)
-			res = PAGE_SIZE;
-		memcpy(buffer, mm->saved_auxv, res);
+		seq_write(m, mm->saved_auxv, nwords * sizeof(mm->saved_auxv[0]));
 		mmput(mm);
-	}
-	return res;
+		return 0;
+	} else
+		return PTR_ERR(mm);
 }
 
 
@@ -229,7 +230,8 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer)
  * Provides a wchan file via kallsyms in a proper one-value-per-file format.
  * Returns the resolved symbol.  If that fails, simply return the address.
  */
-static int proc_pid_wchan(struct task_struct *task, char *buffer)
+static int proc_pid_wchan(struct seq_file *m, struct pid_namespace *ns,
+			  struct pid *pid, struct task_struct *task)
 {
 	unsigned long wchan;
 	char symname[KSYM_NAME_LEN];
@@ -240,9 +242,9 @@ static int proc_pid_wchan(struct task_struct *task, char *buffer)
 		if (!ptrace_may_access(task, PTRACE_MODE_READ))
 			return 0;
 		else
-			return sprintf(buffer, "%lu", wchan);
+			return seq_printf(m, "%lu", wchan);
 	else
-		return sprintf(buffer, "%s", symname);
+		return seq_printf(m, "%s", symname);
 }
 #endif /* CONFIG_KALLSYMS */
 
@@ -304,9 +306,10 @@ static int proc_pid_stack(struct seq_file *m, struct pid_namespace *ns,
 /*
  * Provides /proc/PID/schedstat
  */
-static int proc_pid_schedstat(struct task_struct *task, char *buffer)
+static int proc_pid_schedstat(struct seq_file *m, struct pid_namespace *ns,
+			      struct pid *pid, struct task_struct *task)
 {
-	return sprintf(buffer, "%llu %llu %lu\n",
+	return seq_printf(m, "%llu %llu %lu\n",
 			(unsigned long long)task->se.sum_exec_runtime,
 			(unsigned long long)task->sched_info.run_delay,
 			task->sched_info.pcount);
@@ -404,7 +407,8 @@ static const struct file_operations proc_cpuset_operations = {
 };
 #endif
 
-static int proc_oom_score(struct task_struct *task, char *buffer)
+static int proc_oom_score(struct seq_file *m, struct pid_namespace *ns,
+			  struct pid *pid, struct task_struct *task)
 {
 	unsigned long totalpages = totalram_pages + total_swap_pages;
 	unsigned long points = 0;
@@ -414,12 +418,12 @@ static int proc_oom_score(struct task_struct *task, char *buffer)
 		points = oom_badness(task, NULL, NULL, totalpages) *
 						1000 / totalpages;
 	read_unlock(&tasklist_lock);
-	return sprintf(buffer, "%lu\n", points);
+	return seq_printf(m, "%lu\n", points);
 }
 
 struct limit_names {
-	char *name;
-	char *unit;
+	const char *name;
+	const char *unit;
 };
 
 static const struct limit_names lnames[RLIM_NLIMITS] = {
@@ -442,12 +446,11 @@ static const struct limit_names lnames[RLIM_NLIMITS] = {
 };
 
 /* Display limits for a process */
-static int proc_pid_limits(struct task_struct *task, char *buffer)
+static int proc_pid_limits(struct seq_file *m, struct pid_namespace *ns,
+			   struct pid *pid, struct task_struct *task)
 {
 	unsigned int i;
-	int count = 0;
 	unsigned long flags;
-	char *bufptr = buffer;
 
 	struct rlimit rlim[RLIM_NLIMITS];
 
@@ -459,35 +462,34 @@ static int proc_pid_limits(struct task_struct *task, char *buffer)
 	/*
 	 * print the file header
 	 */
-	count += sprintf(&bufptr[count], "%-25s %-20s %-20s %-10s\n",
+       seq_printf(m, "%-25s %-20s %-20s %-10s\n",
 			"Limit", "Soft Limit", "Hard Limit", "Units");
 
 	for (i = 0; i < RLIM_NLIMITS; i++) {
 		if (rlim[i].rlim_cur == RLIM_INFINITY)
-			count += sprintf(&bufptr[count], "%-25s %-20s ",
+			seq_printf(m, "%-25s %-20s ",
 					 lnames[i].name, "unlimited");
 		else
-			count += sprintf(&bufptr[count], "%-25s %-20lu ",
+			seq_printf(m, "%-25s %-20lu ",
 					 lnames[i].name, rlim[i].rlim_cur);
 
 		if (rlim[i].rlim_max == RLIM_INFINITY)
-			count += sprintf(&bufptr[count], "%-20s ", "unlimited");
+			seq_printf(m, "%-20s ", "unlimited");
 		else
-			count += sprintf(&bufptr[count], "%-20lu ",
-					 rlim[i].rlim_max);
+			seq_printf(m, "%-20lu ", rlim[i].rlim_max);
 
 		if (lnames[i].unit)
-			count += sprintf(&bufptr[count], "%-10s\n",
-					 lnames[i].unit);
+			seq_printf(m, "%-10s\n", lnames[i].unit);
 		else
-			count += sprintf(&bufptr[count], "\n");
+			seq_putc(m, '\n');
 	}
 
-	return count;
+	return 0;
 }
 
 #ifdef CONFIG_HAVE_ARCH_TRACEHOOK
-static int proc_pid_syscall(struct task_struct *task, char *buffer)
+static int proc_pid_syscall(struct seq_file *m, struct pid_namespace *ns,
+			    struct pid *pid, struct task_struct *task)
 {
 	long nr;
 	unsigned long args[6], sp, pc;
@@ -496,11 +498,11 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer)
 		return res;
 
 	if (task_current_syscall(task, &nr, args, 6, &sp, &pc))
-		res = sprintf(buffer, "running\n");
+		seq_puts(m, "running\n");
 	else if (nr < 0)
-		res = sprintf(buffer, "%ld 0x%lx 0x%lx\n", nr, sp, pc);
+		seq_printf(m, "%ld 0x%lx 0x%lx\n", nr, sp, pc);
 	else
-		res = sprintf(buffer,
+		seq_printf(m,
 		       "%ld 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx\n",
 		       nr,
 		       args[0], args[1], args[2], args[3], args[4], args[5],
@@ -598,43 +600,6 @@ static const struct inode_operations proc_def_inode_operations = {
 	.setattr	= proc_setattr,
 };
 
-#define PROC_BLOCK_SIZE	(3*1024)		/* 4K page size but our output routines use some slack for overruns */
-
-static ssize_t proc_info_read(struct file * file, char __user * buf,
-			  size_t count, loff_t *ppos)
-{
-	struct inode * inode = file_inode(file);
-	unsigned long page;
-	ssize_t length;
-	struct task_struct *task = get_proc_task(inode);
-
-	length = -ESRCH;
-	if (!task)
-		goto out_no_task;
-
-	if (count > PROC_BLOCK_SIZE)
-		count = PROC_BLOCK_SIZE;
-
-	length = -ENOMEM;
-	if (!(page = __get_free_page(GFP_TEMPORARY)))
-		goto out;
-
-	length = PROC_I(inode)->op.proc_read(task, (char*)page);
-
-	if (length >= 0)
-		length = simple_read_from_buffer(buf, count, ppos, (char *)page, length);
-	free_page(page);
-out:
-	put_task_struct(task);
-out_no_task:
-	return length;
-}
-
-static const struct file_operations proc_info_file_operations = {
-	.read		= proc_info_read,
-	.llseek		= generic_file_llseek,
-};
-
 static int proc_single_show(struct seq_file *m, void *v)
 {
 	struct inode *inode = m->private;
@@ -2052,7 +2017,7 @@ static int show_timer(struct seq_file *m, void *v)
 	struct k_itimer *timer;
 	struct timers_private *tp = m->private;
 	int notify;
-	static char *nstr[] = {
+	static const char * const nstr[] = {
 		[SIGEV_SIGNAL] = "signal",
 		[SIGEV_NONE] = "none",
 		[SIGEV_THREAD] = "thread",
@@ -2388,7 +2353,7 @@ static const struct file_operations proc_coredump_filter_operations = {
 #endif
 
 #ifdef CONFIG_TASK_IO_ACCOUNTING
-static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
+static int do_io_accounting(struct task_struct *task, struct seq_file *m, int whole)
 {
 	struct task_io_accounting acct = task->ioac;
 	unsigned long flags;
@@ -2412,7 +2377,7 @@ static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
 
 		unlock_task_sighand(task, &flags);
 	}
-	result = sprintf(buffer,
+	result = seq_printf(m,
 			"rchar: %llu\n"
 			"wchar: %llu\n"
 			"syscr: %llu\n"
@@ -2432,20 +2397,22 @@ out_unlock:
 	return result;
 }
 
-static int proc_tid_io_accounting(struct task_struct *task, char *buffer)
+static int proc_tid_io_accounting(struct seq_file *m, struct pid_namespace *ns,
+				  struct pid *pid, struct task_struct *task)
 {
-	return do_io_accounting(task, buffer, 0);
+	return do_io_accounting(task, m, 0);
 }
 
-static int proc_tgid_io_accounting(struct task_struct *task, char *buffer)
+static int proc_tgid_io_accounting(struct seq_file *m, struct pid_namespace *ns,
+				   struct pid *pid, struct task_struct *task)
 {
-	return do_io_accounting(task, buffer, 1);
+	return do_io_accounting(task, m, 1);
 }
 #endif /* CONFIG_TASK_IO_ACCOUNTING */
 
 #ifdef CONFIG_USER_NS
 static int proc_id_map_open(struct inode *inode, struct file *file,
-	struct seq_operations *seq_ops)
+	const struct seq_operations *seq_ops)
 {
 	struct user_namespace *ns = NULL;
 	struct task_struct *task;
@@ -2553,10 +2520,10 @@ static const struct pid_entry tgid_base_stuff[] = {
 	DIR("net",        S_IRUGO|S_IXUGO, proc_net_inode_operations, proc_net_operations),
 #endif
 	REG("environ",    S_IRUSR, proc_environ_operations),
-	INF("auxv",       S_IRUSR, proc_pid_auxv),
+	ONE("auxv",       S_IRUSR, proc_pid_auxv),
 	ONE("status",     S_IRUGO, proc_pid_status),
 	ONE("personality", S_IRUSR, proc_pid_personality),
-	INF("limits",	  S_IRUGO, proc_pid_limits),
+	ONE("limits",	  S_IRUGO, proc_pid_limits),
 #ifdef CONFIG_SCHED_DEBUG
 	REG("sched",      S_IRUGO|S_IWUSR, proc_pid_sched_operations),
 #endif
@@ -2565,9 +2532,9 @@ static const struct pid_entry tgid_base_stuff[] = {
 #endif
 	REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
 #ifdef CONFIG_HAVE_ARCH_TRACEHOOK
-	INF("syscall",    S_IRUSR, proc_pid_syscall),
+	ONE("syscall",    S_IRUSR, proc_pid_syscall),
 #endif
-	INF("cmdline",    S_IRUGO, proc_pid_cmdline),
+	ONE("cmdline",    S_IRUGO, proc_pid_cmdline),
 	ONE("stat",       S_IRUGO, proc_tgid_stat),
 	ONE("statm",      S_IRUGO, proc_pid_statm),
 	REG("maps",       S_IRUGO, proc_pid_maps_operations),
@@ -2590,13 +2557,13 @@ static const struct pid_entry tgid_base_stuff[] = {
 	DIR("attr",       S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
 #endif
 #ifdef CONFIG_KALLSYMS
-	INF("wchan",      S_IRUGO, proc_pid_wchan),
+	ONE("wchan",      S_IRUGO, proc_pid_wchan),
 #endif
 #ifdef CONFIG_STACKTRACE
 	ONE("stack",      S_IRUSR, proc_pid_stack),
 #endif
 #ifdef CONFIG_SCHEDSTATS
-	INF("schedstat",  S_IRUGO, proc_pid_schedstat),
+	ONE("schedstat",  S_IRUGO, proc_pid_schedstat),
 #endif
 #ifdef CONFIG_LATENCYTOP
 	REG("latency",  S_IRUGO, proc_lstats_operations),
@@ -2607,7 +2574,7 @@ static const struct pid_entry tgid_base_stuff[] = {
 #ifdef CONFIG_CGROUPS
 	REG("cgroup",  S_IRUGO, proc_cgroup_operations),
 #endif
-	INF("oom_score",  S_IRUGO, proc_oom_score),
+	ONE("oom_score",  S_IRUGO, proc_oom_score),
 	REG("oom_adj",    S_IRUGO|S_IWUSR, proc_oom_adj_operations),
 	REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
 #ifdef CONFIG_AUDITSYSCALL
@@ -2621,10 +2588,10 @@ static const struct pid_entry tgid_base_stuff[] = {
 	REG("coredump_filter", S_IRUGO|S_IWUSR, proc_coredump_filter_operations),
 #endif
 #ifdef CONFIG_TASK_IO_ACCOUNTING
-	INF("io",	S_IRUSR, proc_tgid_io_accounting),
+	ONE("io",	S_IRUSR, proc_tgid_io_accounting),
 #endif
 #ifdef CONFIG_HARDWALL
-	INF("hardwall",   S_IRUGO, proc_pid_hardwall),
+	ONE("hardwall",   S_IRUGO, proc_pid_hardwall),
 #endif
 #ifdef CONFIG_USER_NS
 	REG("uid_map",    S_IRUGO|S_IWUSR, proc_uid_map_operations),
@@ -2774,12 +2741,12 @@ out:
 
 struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsigned int flags)
 {
-	int result = 0;
+	int result = -ENOENT;
 	struct task_struct *task;
 	unsigned tgid;
 	struct pid_namespace *ns;
 
-	tgid = name_to_int(dentry);
+	tgid = name_to_int(&dentry->d_name);
 	if (tgid == ~0U)
 		goto out;
 
@@ -2890,18 +2857,18 @@ static const struct pid_entry tid_base_stuff[] = {
 	DIR("fdinfo",    S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
 	DIR("ns",	 S_IRUSR|S_IXUGO, proc_ns_dir_inode_operations, proc_ns_dir_operations),
 	REG("environ",   S_IRUSR, proc_environ_operations),
-	INF("auxv",      S_IRUSR, proc_pid_auxv),
+	ONE("auxv",      S_IRUSR, proc_pid_auxv),
 	ONE("status",    S_IRUGO, proc_pid_status),
 	ONE("personality", S_IRUSR, proc_pid_personality),
-	INF("limits",	 S_IRUGO, proc_pid_limits),
+	ONE("limits",	 S_IRUGO, proc_pid_limits),
 #ifdef CONFIG_SCHED_DEBUG
 	REG("sched",     S_IRUGO|S_IWUSR, proc_pid_sched_operations),
 #endif
 	REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
 #ifdef CONFIG_HAVE_ARCH_TRACEHOOK
-	INF("syscall",   S_IRUSR, proc_pid_syscall),
+	ONE("syscall",   S_IRUSR, proc_pid_syscall),
 #endif
-	INF("cmdline",   S_IRUGO, proc_pid_cmdline),
+	ONE("cmdline",   S_IRUGO, proc_pid_cmdline),
 	ONE("stat",      S_IRUGO, proc_tid_stat),
 	ONE("statm",     S_IRUGO, proc_pid_statm),
 	REG("maps",      S_IRUGO, proc_tid_maps_operations),
@@ -2926,13 +2893,13 @@ static const struct pid_entry tid_base_stuff[] = {
 	DIR("attr",      S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
 #endif
 #ifdef CONFIG_KALLSYMS
-	INF("wchan",     S_IRUGO, proc_pid_wchan),
+	ONE("wchan",     S_IRUGO, proc_pid_wchan),
 #endif
 #ifdef CONFIG_STACKTRACE
 	ONE("stack",      S_IRUSR, proc_pid_stack),
 #endif
 #ifdef CONFIG_SCHEDSTATS
-	INF("schedstat", S_IRUGO, proc_pid_schedstat),
+	ONE("schedstat", S_IRUGO, proc_pid_schedstat),
 #endif
 #ifdef CONFIG_LATENCYTOP
 	REG("latency",  S_IRUGO, proc_lstats_operations),
@@ -2943,7 +2910,7 @@ static const struct pid_entry tid_base_stuff[] = {
 #ifdef CONFIG_CGROUPS
 	REG("cgroup",  S_IRUGO, proc_cgroup_operations),
 #endif
-	INF("oom_score", S_IRUGO, proc_oom_score),
+	ONE("oom_score", S_IRUGO, proc_oom_score),
 	REG("oom_adj",   S_IRUGO|S_IWUSR, proc_oom_adj_operations),
 	REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
 #ifdef CONFIG_AUDITSYSCALL
@@ -2954,10 +2921,10 @@ static const struct pid_entry tid_base_stuff[] = {
 	REG("make-it-fail", S_IRUGO|S_IWUSR, proc_fault_inject_operations),
 #endif
 #ifdef CONFIG_TASK_IO_ACCOUNTING
-	INF("io",	S_IRUSR, proc_tid_io_accounting),
+	ONE("io",	S_IRUSR, proc_tid_io_accounting),
 #endif
 #ifdef CONFIG_HARDWALL
-	INF("hardwall",   S_IRUGO, proc_pid_hardwall),
+	ONE("hardwall",   S_IRUGO, proc_pid_hardwall),
 #endif
 #ifdef CONFIG_USER_NS
 	REG("uid_map",    S_IRUGO|S_IWUSR, proc_uid_map_operations),
@@ -3027,7 +2994,7 @@ static struct dentry *proc_task_lookup(struct inode *dir, struct dentry * dentry
 	if (!leader)
 		goto out_no_task;
 
-	tid = name_to_int(dentry);
+	tid = name_to_int(&dentry->d_name);
 	if (tid == ~0U)
 		goto out;
 
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index eb82e9f00f58..e11d7c590bb0 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -204,7 +204,7 @@ static struct dentry *proc_lookupfd_common(struct inode *dir,
 {
 	struct task_struct *task = get_proc_task(dir);
 	int result = -ENOENT;
-	unsigned fd = name_to_int(dentry);
+	unsigned fd = name_to_int(&dentry->d_name);
 
 	if (!task)
 		goto out_no_task;
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index b7f268eb5f45..317b72641ebf 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -27,7 +27,7 @@
 
 #include "internal.h"
 
-DEFINE_SPINLOCK(proc_subdir_lock);
+static DEFINE_SPINLOCK(proc_subdir_lock);
 
 static int proc_match(unsigned int len, const char *name, struct proc_dir_entry *de)
 {
@@ -330,28 +330,28 @@ static struct proc_dir_entry *__proc_create(struct proc_dir_entry **parent,
 					  nlink_t nlink)
 {
 	struct proc_dir_entry *ent = NULL;
-	const char *fn = name;
-	unsigned int len;
-
-	/* make sure name is valid */
-	if (!name || !strlen(name))
-		goto out;
+	const char *fn;
+	struct qstr qstr;
 
 	if (xlate_proc_name(name, parent, &fn) != 0)
 		goto out;
+	qstr.name = fn;
+	qstr.len = strlen(fn);
+	if (qstr.len == 0 || qstr.len >= 256) {
+		WARN(1, "name len %u\n", qstr.len);
+		return NULL;
+	}
+	if (*parent == &proc_root && name_to_int(&qstr) != ~0U) {
+		WARN(1, "create '/proc/%s' by hand\n", qstr.name);
+		return NULL;
+	}
 
-	/* At this point there must not be any '/' characters beyond *fn */
-	if (strchr(fn, '/'))
-		goto out;
-
-	len = strlen(fn);
-
-	ent = kzalloc(sizeof(struct proc_dir_entry) + len + 1, GFP_KERNEL);
+	ent = kzalloc(sizeof(struct proc_dir_entry) + qstr.len + 1, GFP_KERNEL);
 	if (!ent)
 		goto out;
 
-	memcpy(ent->name, fn, len + 1);
-	ent->namelen = len;
+	memcpy(ent->name, fn, qstr.len + 1);
+	ent->namelen = qstr.len;
 	ent->mode = mode;
 	ent->nlink = nlink;
 	atomic_set(&ent->count, 1);
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 3ab6d14e71c5..a024cf7b260f 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -52,7 +52,6 @@ struct proc_dir_entry {
 
 union proc_op {
 	int (*proc_get_link)(struct dentry *, struct path *);
-	int (*proc_read)(struct task_struct *task, char *page);
 	int (*proc_show)(struct seq_file *m,
 		struct pid_namespace *ns, struct pid *pid,
 		struct task_struct *task);
@@ -112,10 +111,10 @@ static inline int task_dumpable(struct task_struct *task)
 	return 0;
 }
 
-static inline unsigned name_to_int(struct dentry *dentry)
+static inline unsigned name_to_int(const struct qstr *qstr)
 {
-	const char *name = dentry->d_name.name;
-	int len = dentry->d_name.len;
+	const char *name = qstr->name;
+	int len = qstr->len;
 	unsigned n = 0;
 
 	if (len > 1 && *name == '0')
@@ -178,8 +177,6 @@ extern bool proc_fill_cache(struct file *, struct dir_context *, const char *, i
 /*
  * generic.c
  */
-extern spinlock_t proc_subdir_lock;
-
 extern struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int);
 extern struct dentry *proc_lookup_de(struct proc_dir_entry *, struct inode *,
 				     struct dentry *);
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 39e6ef32f0bd..6df8d0722c97 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -172,7 +172,7 @@ get_sparsemem_vmemmap_info(struct kcore_list *ent, struct list_head *head)
 
 	start = ((unsigned long)pfn_to_page(pfn)) & PAGE_MASK;
 	end = ((unsigned long)pfn_to_page(pfn + nr_pages)) - 1;
-	end = ALIGN(end, PAGE_SIZE);
+	end = PAGE_ALIGN(end);
 	/* overlap check (because we have to align page */
 	list_for_each_entry(tmp, head, list) {
 		if (tmp->type != KCORE_VMEMMAP)
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 7445af0b1aa3..aa1eee06420f 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -168,7 +168,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 		K(global_page_state(NR_WRITEBACK)),
 		K(global_page_state(NR_ANON_PAGES)),
 		K(global_page_state(NR_FILE_MAPPED)),
-		K(global_page_state(NR_SHMEM)),
+		K(i.sharedram),
 		K(global_page_state(NR_SLAB_RECLAIMABLE) +
 				global_page_state(NR_SLAB_UNRECLAIMABLE)),
 		K(global_page_state(NR_SLAB_RECLAIMABLE)),
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 71290463a1d3..f92d5dd578a4 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -632,7 +632,7 @@ out:
 	return ret;
 }
 
-static int scan(struct ctl_table_header *head, ctl_table *table,
+static int scan(struct ctl_table_header *head, struct ctl_table *table,
 		unsigned long *pos, struct file *file,
 		struct dir_context *ctx)
 {
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
index cb761f010300..15f327bed8c6 100644
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -18,7 +18,7 @@
 /*
  * The /proc/tty directory inodes...
  */
-static struct proc_dir_entry *proc_tty_ldisc, *proc_tty_driver;
+static struct proc_dir_entry *proc_tty_driver;
 
 /*
  * This is the handler for /proc/tty/drivers
@@ -176,7 +176,7 @@ void __init proc_tty_init(void)
 {
 	if (!proc_mkdir("tty", NULL))
 		return;
-	proc_tty_ldisc = proc_mkdir("tty/ldisc", NULL);
+	proc_mkdir("tty/ldisc", NULL);	/* Preserved: it's userspace visible */
 	/*
 	 * /proc/tty/driver/serial reveals the exact character counts for
 	 * serial links which is just too easy to abuse for inferring
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 5dbadecb234d..574bafc41f0b 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -199,10 +199,10 @@ static int proc_root_getattr(struct vfsmount *mnt, struct dentry *dentry, struct
 
 static struct dentry *proc_root_lookup(struct inode * dir, struct dentry * dentry, unsigned int flags)
 {
-	if (!proc_lookup(dir, dentry, flags))
+	if (!proc_pid_lookup(dir, dentry, flags))
 		return NULL;
 	
-	return proc_pid_lookup(dir, dentry, flags);
+	return proc_lookup(dir, dentry, flags);
 }
 
 static int proc_root_readdir(struct file *file, struct dir_context *ctx)
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 382aa890e228..a90d6d354199 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -328,6 +328,82 @@ static inline char *alloc_elfnotes_buf(size_t notes_sz)
  * virtually contiguous user-space in ELF layout.
  */
 #ifdef CONFIG_MMU
+/*
+ * remap_oldmem_pfn_checked - do remap_oldmem_pfn_range replacing all pages
+ * reported as not being ram with the zero page.
+ *
+ * @vma: vm_area_struct describing requested mapping
+ * @from: start remapping from
+ * @pfn: page frame number to start remapping to
+ * @size: remapping size
+ * @prot: protection bits
+ *
+ * Returns zero on success, -EAGAIN on failure.
+ */
+static int remap_oldmem_pfn_checked(struct vm_area_struct *vma,
+				    unsigned long from, unsigned long pfn,
+				    unsigned long size, pgprot_t prot)
+{
+	unsigned long map_size;
+	unsigned long pos_start, pos_end, pos;
+	unsigned long zeropage_pfn = my_zero_pfn(0);
+	size_t len = 0;
+
+	pos_start = pfn;
+	pos_end = pfn + (size >> PAGE_SHIFT);
+
+	for (pos = pos_start; pos < pos_end; ++pos) {
+		if (!pfn_is_ram(pos)) {
+			/*
+			 * We hit a page which is not ram. Remap the continuous
+			 * region between pos_start and pos-1 and replace
+			 * the non-ram page at pos with the zero page.
+			 */
+			if (pos > pos_start) {
+				/* Remap continuous region */
+				map_size = (pos - pos_start) << PAGE_SHIFT;
+				if (remap_oldmem_pfn_range(vma, from + len,
+							   pos_start, map_size,
+							   prot))
+					goto fail;
+				len += map_size;
+			}
+			/* Remap the zero page */
+			if (remap_oldmem_pfn_range(vma, from + len,
+						   zeropage_pfn,
+						   PAGE_SIZE, prot))
+				goto fail;
+			len += PAGE_SIZE;
+			pos_start = pos + 1;
+		}
+	}
+	if (pos > pos_start) {
+		/* Remap the rest */
+		map_size = (pos - pos_start) << PAGE_SHIFT;
+		if (remap_oldmem_pfn_range(vma, from + len, pos_start,
+					   map_size, prot))
+			goto fail;
+	}
+	return 0;
+fail:
+	do_munmap(vma->vm_mm, from, len);
+	return -EAGAIN;
+}
+
+static int vmcore_remap_oldmem_pfn(struct vm_area_struct *vma,
+			    unsigned long from, unsigned long pfn,
+			    unsigned long size, pgprot_t prot)
+{
+	/*
+	 * Check if oldmem_pfn_is_ram was registered to avoid
+	 * looping over all pages without a reason.
+	 */
+	if (oldmem_pfn_is_ram)
+		return remap_oldmem_pfn_checked(vma, from, pfn, size, prot);
+	else
+		return remap_oldmem_pfn_range(vma, from, pfn, size, prot);
+}
+
 static int mmap_vmcore(struct file *file, struct vm_area_struct *vma)
 {
 	size_t size = vma->vm_end - vma->vm_start;
@@ -387,9 +463,9 @@ static int mmap_vmcore(struct file *file, struct vm_area_struct *vma)
 
 			tsz = min_t(size_t, m->offset + m->size - start, size);
 			paddr = m->paddr + start - m->offset;
-			if (remap_oldmem_pfn_range(vma, vma->vm_start + len,
-						   paddr >> PAGE_SHIFT, tsz,
-						   vma->vm_page_prot))
+			if (vmcore_remap_oldmem_pfn(vma, vma->vm_start + len,
+						    paddr >> PAGE_SHIFT, tsz,
+						    vma->vm_page_prot))
 				goto fail;
 			size -= tsz;
 			start += tsz;
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index 34a1e5aa848c..9d7b9a83699e 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -394,7 +394,7 @@ static void *persistent_ram_vmap(phys_addr_t start, size_t size)
 
 	prot = pgprot_noncached(PAGE_KERNEL);
 
-	pages = kmalloc(sizeof(struct page *) * page_count, GFP_KERNEL);
+	pages = kmalloc_array(page_count, sizeof(struct page *), GFP_KERNEL);
 	if (!pages) {
 		pr_err("%s: Failed to allocate array for %u pages\n",
 		       __func__, page_count);
diff --git a/fs/qnx6/Makefile b/fs/qnx6/Makefile
index 9dd06199afc9..5e6bae6fae50 100644
--- a/fs/qnx6/Makefile
+++ b/fs/qnx6/Makefile
@@ -5,3 +5,4 @@
 obj-$(CONFIG_QNX6FS_FS) += qnx6.o
 
 qnx6-objs := inode.o dir.o namei.o super_mmi.o
+ccflags-$(CONFIG_QNX6FS_DEBUG)	+= -DDEBUG
diff --git a/fs/qnx6/dir.c b/fs/qnx6/dir.c
index 15b7d92ed60d..8d64bb5366bf 100644
--- a/fs/qnx6/dir.c
+++ b/fs/qnx6/dir.c
@@ -77,21 +77,20 @@ static int qnx6_dir_longfilename(struct inode *inode,
 	if (de->de_size != 0xff) {
 		/* error - long filename entries always have size 0xff
 		   in direntry */
-		printk(KERN_ERR "qnx6: invalid direntry size (%i).\n",
-				de->de_size);
+		pr_err("invalid direntry size (%i).\n", de->de_size);
 		return 0;
 	}
 	lf = qnx6_longname(s, de, &page);
 	if (IS_ERR(lf)) {
-		printk(KERN_ERR "qnx6:Error reading longname\n");
+		pr_err("Error reading longname\n");
 		return 0;
 	}
 
 	lf_size = fs16_to_cpu(sbi, lf->lf_size);
 
 	if (lf_size > QNX6_LONG_NAME_MAX) {
-		QNX6DEBUG((KERN_INFO "file %s\n", lf->lf_fname));
-		printk(KERN_ERR "qnx6:Filename too long (%i)\n", lf_size);
+		pr_debug("file %s\n", lf->lf_fname);
+		pr_err("Filename too long (%i)\n", lf_size);
 		qnx6_put_page(page);
 		return 0;
 	}
@@ -100,10 +99,10 @@ static int qnx6_dir_longfilename(struct inode *inode,
 	   mmi 3g filesystem does not have that checksum */
 	if (!test_opt(s, MMI_FS) && fs32_to_cpu(sbi, de->de_checksum) !=
 			qnx6_lfile_checksum(lf->lf_fname, lf_size))
-		printk(KERN_INFO "qnx6: long filename checksum error.\n");
+		pr_info("long filename checksum error.\n");
 
-	QNX6DEBUG((KERN_INFO "qnx6_readdir:%.*s inode:%u\n",
-					lf_size, lf->lf_fname, de_inode));
+	pr_debug("qnx6_readdir:%.*s inode:%u\n",
+		 lf_size, lf->lf_fname, de_inode);
 	if (!dir_emit(ctx, lf->lf_fname, lf_size, de_inode, DT_UNKNOWN)) {
 		qnx6_put_page(page);
 		return 0;
@@ -136,7 +135,7 @@ static int qnx6_readdir(struct file *file, struct dir_context *ctx)
 		int i = start;
 
 		if (IS_ERR(page)) {
-			printk(KERN_ERR "qnx6_readdir: read failed\n");
+			pr_err("%s(): read failed\n", __func__);
 			ctx->pos = (n + 1) << PAGE_CACHE_SHIFT;
 			return PTR_ERR(page);
 		}
@@ -159,9 +158,9 @@ static int qnx6_readdir(struct file *file, struct dir_context *ctx)
 					break;
 				}
 			} else {
-				QNX6DEBUG((KERN_INFO "qnx6_readdir:%.*s"
-				   " inode:%u\n", size, de->de_fname,
-							no_inode));
+				pr_debug("%s():%.*s inode:%u\n",
+					 __func__, size, de->de_fname,
+					 no_inode);
 				if (!dir_emit(ctx, de->de_fname, size,
 				      no_inode, DT_UNKNOWN)) {
 					done = true;
@@ -259,8 +258,7 @@ unsigned qnx6_find_entry(int len, struct inode *dir, const char *name,
 					if (ino)
 						goto found;
 				} else
-					printk(KERN_ERR "qnx6: undefined "
-						"filename size in inode.\n");
+					pr_err("undefined filename size in inode.\n");
 			}
 			qnx6_put_page(page);
 		}
diff --git a/fs/qnx6/inode.c b/fs/qnx6/inode.c
index 65cdaab3ed49..44e73923670d 100644
--- a/fs/qnx6/inode.c
+++ b/fs/qnx6/inode.c
@@ -73,8 +73,8 @@ static int qnx6_get_block(struct inode *inode, sector_t iblock,
 {
 	unsigned phys;
 
-	QNX6DEBUG((KERN_INFO "qnx6: qnx6_get_block inode=[%ld] iblock=[%ld]\n",
-			inode->i_ino, (unsigned long)iblock));
+	pr_debug("qnx6_get_block inode=[%ld] iblock=[%ld]\n",
+		 inode->i_ino, (unsigned long)iblock);
 
 	phys = qnx6_block_map(inode, iblock);
 	if (phys) {
@@ -87,7 +87,7 @@ static int qnx6_get_block(struct inode *inode, sector_t iblock,
 static int qnx6_check_blockptr(__fs32 ptr)
 {
 	if (ptr == ~(__fs32)0) {
-		printk(KERN_ERR "qnx6: hit unused blockpointer.\n");
+		pr_err("hit unused blockpointer.\n");
 		return 0;
 	}
 	return 1;
@@ -127,8 +127,7 @@ static unsigned qnx6_block_map(struct inode *inode, unsigned no)
 	levelptr = no >> bitdelta;
 
 	if (levelptr > QNX6_NO_DIRECT_POINTERS - 1) {
-		printk(KERN_ERR "qnx6:Requested file block number (%u) too big.",
-				no);
+		pr_err("Requested file block number (%u) too big.", no);
 		return 0;
 	}
 
@@ -137,8 +136,7 @@ static unsigned qnx6_block_map(struct inode *inode, unsigned no)
 	for (i = 0; i < depth; i++) {
 		bh = sb_bread(s, block);
 		if (!bh) {
-			printk(KERN_ERR "qnx6:Error reading block (%u)\n",
-					block);
+			pr_err("Error reading block (%u)\n", block);
 			return 0;
 		}
 		bitdelta -= ptrbits;
@@ -207,26 +205,16 @@ void qnx6_superblock_debug(struct qnx6_super_block *sb, struct super_block *s)
 {
 	struct qnx6_sb_info *sbi = QNX6_SB(s);
 
-	QNX6DEBUG((KERN_INFO "magic: %08x\n",
-				fs32_to_cpu(sbi, sb->sb_magic)));
-	QNX6DEBUG((KERN_INFO "checksum: %08x\n",
-				fs32_to_cpu(sbi, sb->sb_checksum)));
-	QNX6DEBUG((KERN_INFO "serial: %llx\n",
-				fs64_to_cpu(sbi, sb->sb_serial)));
-	QNX6DEBUG((KERN_INFO "flags: %08x\n",
-				fs32_to_cpu(sbi, sb->sb_flags)));
-	QNX6DEBUG((KERN_INFO "blocksize: %08x\n",
-				fs32_to_cpu(sbi, sb->sb_blocksize)));
-	QNX6DEBUG((KERN_INFO "num_inodes: %08x\n",
-				fs32_to_cpu(sbi, sb->sb_num_inodes)));
-	QNX6DEBUG((KERN_INFO "free_inodes: %08x\n",
-				fs32_to_cpu(sbi, sb->sb_free_inodes)));
-	QNX6DEBUG((KERN_INFO "num_blocks: %08x\n",
-				fs32_to_cpu(sbi, sb->sb_num_blocks)));
-	QNX6DEBUG((KERN_INFO "free_blocks: %08x\n",
-				fs32_to_cpu(sbi, sb->sb_free_blocks)));
-	QNX6DEBUG((KERN_INFO "inode_levels: %02x\n",
-				sb->Inode.levels));
+	pr_debug("magic: %08x\n", fs32_to_cpu(sbi, sb->sb_magic));
+	pr_debug("checksum: %08x\n", fs32_to_cpu(sbi, sb->sb_checksum));
+	pr_debug("serial: %llx\n", fs64_to_cpu(sbi, sb->sb_serial));
+	pr_debug("flags: %08x\n", fs32_to_cpu(sbi, sb->sb_flags));
+	pr_debug("blocksize: %08x\n", fs32_to_cpu(sbi, sb->sb_blocksize));
+	pr_debug("num_inodes: %08x\n", fs32_to_cpu(sbi, sb->sb_num_inodes));
+	pr_debug("free_inodes: %08x\n", fs32_to_cpu(sbi, sb->sb_free_inodes));
+	pr_debug("num_blocks: %08x\n", fs32_to_cpu(sbi, sb->sb_num_blocks));
+	pr_debug("free_blocks: %08x\n", fs32_to_cpu(sbi, sb->sb_free_blocks));
+	pr_debug("inode_levels: %02x\n", sb->Inode.levels);
 }
 #endif
 
@@ -277,7 +265,7 @@ static struct buffer_head *qnx6_check_first_superblock(struct super_block *s,
 	   start with the first superblock */
 	bh = sb_bread(s, offset);
 	if (!bh) {
-		printk(KERN_ERR "qnx6: unable to read the first superblock\n");
+		pr_err("unable to read the first superblock\n");
 		return NULL;
 	}
 	sb = (struct qnx6_super_block *)bh->b_data;
@@ -285,20 +273,16 @@ static struct buffer_head *qnx6_check_first_superblock(struct super_block *s,
 		sbi->s_bytesex = BYTESEX_BE;
 		if (fs32_to_cpu(sbi, sb->sb_magic) == QNX6_SUPER_MAGIC) {
 			/* we got a big endian fs */
-			QNX6DEBUG((KERN_INFO "qnx6: fs got different"
-					" endianness.\n"));
+			pr_debug("fs got different endianness.\n");
 			return bh;
 		} else
 			sbi->s_bytesex = BYTESEX_LE;
 		if (!silent) {
 			if (offset == 0) {
-				printk(KERN_ERR "qnx6: wrong signature (magic)"
-					" in superblock #1.\n");
+				pr_err("wrong signature (magic) in superblock #1.\n");
 			} else {
-				printk(KERN_INFO "qnx6: wrong signature (magic)"
-					" at position (0x%lx) - will try"
-					" alternative position (0x0000).\n",
-						offset * s->s_blocksize);
+				pr_info("wrong signature (magic) at position (0x%lx) - will try alternative position (0x0000).\n",
+					offset * s->s_blocksize);
 			}
 		}
 		brelse(bh);
@@ -329,13 +313,13 @@ static int qnx6_fill_super(struct super_block *s, void *data, int silent)
 
 	/* Superblock always is 512 Byte long */
 	if (!sb_set_blocksize(s, QNX6_SUPERBLOCK_SIZE)) {
-		printk(KERN_ERR "qnx6: unable to set blocksize\n");
+		pr_err("unable to set blocksize\n");
 		goto outnobh;
 	}
 
 	/* parse the mount-options */
 	if (!qnx6_parse_options((char *) data, s)) {
-		printk(KERN_ERR "qnx6: invalid mount options.\n");
+		pr_err("invalid mount options.\n");
 		goto outnobh;
 	}
 	if (test_opt(s, MMI_FS)) {
@@ -355,7 +339,7 @@ static int qnx6_fill_super(struct super_block *s, void *data, int silent)
 		/* try again without bootblock offset */
 		bh1 = qnx6_check_first_superblock(s, 0, silent);
 		if (!bh1) {
-			printk(KERN_ERR "qnx6: unable to read the first superblock\n");
+			pr_err("unable to read the first superblock\n");
 			goto outnobh;
 		}
 		/* seems that no bootblock at partition start */
@@ -370,13 +354,13 @@ static int qnx6_fill_super(struct super_block *s, void *data, int silent)
 	/* checksum check - start at byte 8 and end at byte 512 */
 	if (fs32_to_cpu(sbi, sb1->sb_checksum) !=
 			crc32_be(0, (char *)(bh1->b_data + 8), 504)) {
-		printk(KERN_ERR "qnx6: superblock #1 checksum error\n");
+		pr_err("superblock #1 checksum error\n");
 		goto out;
 	}
 
 	/* set new blocksize */
 	if (!sb_set_blocksize(s, fs32_to_cpu(sbi, sb1->sb_blocksize))) {
-		printk(KERN_ERR "qnx6: unable to set blocksize\n");
+		pr_err("unable to set blocksize\n");
 		goto out;
 	}
 	/* blocksize invalidates bh - pull it back in */
@@ -398,21 +382,20 @@ static int qnx6_fill_super(struct super_block *s, void *data, int silent)
 	/* next the second superblock */
 	bh2 = sb_bread(s, offset);
 	if (!bh2) {
-		printk(KERN_ERR "qnx6: unable to read the second superblock\n");
+		pr_err("unable to read the second superblock\n");
 		goto out;
 	}
 	sb2 = (struct qnx6_super_block *)bh2->b_data;
 	if (fs32_to_cpu(sbi, sb2->sb_magic) != QNX6_SUPER_MAGIC) {
 		if (!silent)
-			printk(KERN_ERR "qnx6: wrong signature (magic)"
-					" in superblock #2.\n");
+			pr_err("wrong signature (magic) in superblock #2.\n");
 		goto out;
 	}
 
 	/* checksum check - start at byte 8 and end at byte 512 */
 	if (fs32_to_cpu(sbi, sb2->sb_checksum) !=
 				crc32_be(0, (char *)(bh2->b_data + 8), 504)) {
-		printk(KERN_ERR "qnx6: superblock #2 checksum error\n");
+		pr_err("superblock #2 checksum error\n");
 		goto out;
 	}
 
@@ -422,25 +405,24 @@ static int qnx6_fill_super(struct super_block *s, void *data, int silent)
 		sbi->sb_buf = bh1;
 		sbi->sb = (struct qnx6_super_block *)bh1->b_data;
 		brelse(bh2);
-		printk(KERN_INFO "qnx6: superblock #1 active\n");
+		pr_info("superblock #1 active\n");
 	} else {
 		/* superblock #2 active */
 		sbi->sb_buf = bh2;
 		sbi->sb = (struct qnx6_super_block *)bh2->b_data;
 		brelse(bh1);
-		printk(KERN_INFO "qnx6: superblock #2 active\n");
+		pr_info("superblock #2 active\n");
 	}
 mmi_success:
 	/* sanity check - limit maximum indirect pointer levels */
 	if (sb1->Inode.levels > QNX6_PTR_MAX_LEVELS) {
-		printk(KERN_ERR "qnx6: too many inode levels (max %i, sb %i)\n",
-			QNX6_PTR_MAX_LEVELS, sb1->Inode.levels);
+		pr_err("too many inode levels (max %i, sb %i)\n",
+		       QNX6_PTR_MAX_LEVELS, sb1->Inode.levels);
 		goto out;
 	}
 	if (sb1->Longfile.levels > QNX6_PTR_MAX_LEVELS) {
-		printk(KERN_ERR "qnx6: too many longfilename levels"
-				" (max %i, sb %i)\n",
-			QNX6_PTR_MAX_LEVELS, sb1->Longfile.levels);
+		pr_err("too many longfilename levels (max %i, sb %i)\n",
+		       QNX6_PTR_MAX_LEVELS, sb1->Longfile.levels);
 		goto out;
 	}
 	s->s_op = &qnx6_sops;
@@ -460,7 +442,7 @@ mmi_success:
 	/* prefetch root inode */
 	root = qnx6_iget(s, QNX6_ROOT_INO);
 	if (IS_ERR(root)) {
-		printk(KERN_ERR "qnx6: get inode failed\n");
+		pr_err("get inode failed\n");
 		ret = PTR_ERR(root);
 		goto out2;
 	}
@@ -474,7 +456,7 @@ mmi_success:
 	errmsg = qnx6_checkroot(s);
 	if (errmsg != NULL) {
 		if (!silent)
-			printk(KERN_ERR "qnx6: %s\n", errmsg);
+			pr_err("%s\n", errmsg);
 		goto out3;
 	}
 	return 0;
@@ -555,8 +537,7 @@ struct inode *qnx6_iget(struct super_block *sb, unsigned ino)
 	inode->i_mode = 0;
 
 	if (ino == 0) {
-		printk(KERN_ERR "qnx6: bad inode number on dev %s: %u is "
-				"out of range\n",
+		pr_err("bad inode number on dev %s: %u is out of range\n",
 		       sb->s_id, ino);
 		iget_failed(inode);
 		return ERR_PTR(-EIO);
@@ -566,8 +547,8 @@ struct inode *qnx6_iget(struct super_block *sb, unsigned ino)
 	mapping = sbi->inodes->i_mapping;
 	page = read_mapping_page(mapping, n, NULL);
 	if (IS_ERR(page)) {
-		printk(KERN_ERR "qnx6: major problem: unable to read inode from "
-		       "dev %s\n", sb->s_id);
+		pr_err("major problem: unable to read inode from dev %s\n",
+		       sb->s_id);
 		iget_failed(inode);
 		return ERR_CAST(page);
 	}
@@ -689,7 +670,7 @@ static int __init init_qnx6_fs(void)
 		return err;
 	}
 
-	printk(KERN_INFO "QNX6 filesystem 1.0.0 registered.\n");
+	pr_info("QNX6 filesystem 1.0.0 registered.\n");
 	return 0;
 }
 
diff --git a/fs/qnx6/namei.c b/fs/qnx6/namei.c
index 0561326a94f5..6c1a323137dd 100644
--- a/fs/qnx6/namei.c
+++ b/fs/qnx6/namei.c
@@ -29,12 +29,12 @@ struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry,
 		foundinode = qnx6_iget(dir->i_sb, ino);
 		qnx6_put_page(page);
 		if (IS_ERR(foundinode)) {
-			QNX6DEBUG((KERN_ERR "qnx6: lookup->iget -> "
-				" error %ld\n", PTR_ERR(foundinode)));
+			pr_debug("lookup->iget ->  error %ld\n",
+				 PTR_ERR(foundinode));
 			return ERR_CAST(foundinode);
 		}
 	} else {
-		QNX6DEBUG((KERN_INFO "qnx6_lookup: not found %s\n", name));
+		pr_debug("%s(): not found %s\n", __func__, name);
 		return NULL;
 	}
 	d_add(dentry, foundinode);
diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h
index b00fcc960d37..d3fb2b698800 100644
--- a/fs/qnx6/qnx6.h
+++ b/fs/qnx6/qnx6.h
@@ -10,6 +10,12 @@
  *
  */
 
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/fs.h>
 #include <linux/pagemap.h>
 
@@ -19,12 +25,6 @@ typedef __u64 __bitwise __fs64;
 
 #include <linux/qnx6_fs.h>
 
-#ifdef CONFIG_QNX6FS_DEBUG
-#define QNX6DEBUG(X) printk X
-#else
-#define QNX6DEBUG(X) (void) 0
-#endif
-
 struct qnx6_sb_info {
 	struct buffer_head	*sb_buf;	/* superblock buffer */
 	struct qnx6_super_block	*sb;		/* our superblock */
diff --git a/fs/qnx6/super_mmi.c b/fs/qnx6/super_mmi.c
index 29c32cba62d6..62aaf3e3126a 100644
--- a/fs/qnx6/super_mmi.c
+++ b/fs/qnx6/super_mmi.c
@@ -44,15 +44,14 @@ struct qnx6_super_block *qnx6_mmi_fill_super(struct super_block *s, int silent)
 	   start with the first superblock */
 	bh1 = sb_bread(s, 0);
 	if (!bh1) {
-		printk(KERN_ERR "qnx6: Unable to read first mmi superblock\n");
+		pr_err("Unable to read first mmi superblock\n");
 		return NULL;
 	}
 	sb1 = (struct qnx6_mmi_super_block *)bh1->b_data;
 	sbi = QNX6_SB(s);
 	if (fs32_to_cpu(sbi, sb1->sb_magic) != QNX6_SUPER_MAGIC) {
 		if (!silent) {
-			printk(KERN_ERR "qnx6: wrong signature (magic) in"
-					" superblock #1.\n");
+			pr_err("wrong signature (magic) in superblock #1.\n");
 			goto out;
 		}
 	}
@@ -60,7 +59,7 @@ struct qnx6_super_block *qnx6_mmi_fill_super(struct super_block *s, int silent)
 	/* checksum check - start at byte 8 and end at byte 512 */
 	if (fs32_to_cpu(sbi, sb1->sb_checksum) !=
 				crc32_be(0, (char *)(bh1->b_data + 8), 504)) {
-		printk(KERN_ERR "qnx6: superblock #1 checksum error\n");
+		pr_err("superblock #1 checksum error\n");
 		goto out;
 	}
 
@@ -70,7 +69,7 @@ struct qnx6_super_block *qnx6_mmi_fill_super(struct super_block *s, int silent)
 
 	/* set new blocksize */
 	if (!sb_set_blocksize(s, fs32_to_cpu(sbi, sb1->sb_blocksize))) {
-		printk(KERN_ERR "qnx6: unable to set blocksize\n");
+		pr_err("unable to set blocksize\n");
 		goto out;
 	}
 	/* blocksize invalidates bh - pull it back in */
@@ -83,27 +82,26 @@ struct qnx6_super_block *qnx6_mmi_fill_super(struct super_block *s, int silent)
 	/* read second superblock */
 	bh2 = sb_bread(s, offset);
 	if (!bh2) {
-		printk(KERN_ERR "qnx6: unable to read the second superblock\n");
+		pr_err("unable to read the second superblock\n");
 		goto out;
 	}
 	sb2 = (struct qnx6_mmi_super_block *)bh2->b_data;
 	if (fs32_to_cpu(sbi, sb2->sb_magic) != QNX6_SUPER_MAGIC) {
 		if (!silent)
-			printk(KERN_ERR "qnx6: wrong signature (magic) in"
-					" superblock #2.\n");
+			pr_err("wrong signature (magic) in superblock #2.\n");
 		goto out;
 	}
 
 	/* checksum check - start at byte 8 and end at byte 512 */
 	if (fs32_to_cpu(sbi, sb2->sb_checksum)
 			!= crc32_be(0, (char *)(bh2->b_data + 8), 504)) {
-		printk(KERN_ERR "qnx6: superblock #1 checksum error\n");
+		pr_err("superblock #1 checksum error\n");
 		goto out;
 	}
 
 	qsb = kmalloc(sizeof(*qsb), GFP_KERNEL);
 	if (!qsb) {
-		printk(KERN_ERR "qnx6: unable to allocate memory.\n");
+		pr_err("unable to allocate memory.\n");
 		goto out;
 	}
 
@@ -119,7 +117,7 @@ struct qnx6_super_block *qnx6_mmi_fill_super(struct super_block *s, int silent)
 		sbi->sb_buf = bh1;
 		sbi->sb = (struct qnx6_super_block *)bh1->b_data;
 		brelse(bh2);
-		printk(KERN_INFO "qnx6: superblock #1 active\n");
+		pr_info("superblock #1 active\n");
 	} else {
 		/* superblock #2 active */
 		qnx6_mmi_copy_sb(qsb, sb2);
@@ -131,7 +129,7 @@ struct qnx6_super_block *qnx6_mmi_fill_super(struct super_block *s, int silent)
 		sbi->sb_buf = bh2;
 		sbi->sb = (struct qnx6_super_block *)bh2->b_data;
 		brelse(bh1);
-		printk(KERN_INFO "qnx6: superblock #2 active\n");
+		pr_info("superblock #2 active\n");
 	}
 	kfree(qsb);
 
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index dda012ad4208..bbafbde3471a 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -222,7 +222,7 @@ static unsigned long ramfs_nommu_get_unmapped_area(struct file *file,
 
 	/* gang-find the pages */
 	ret = -ENOMEM;
-	pages = kzalloc(lpages * sizeof(struct page *), GFP_KERNEL);
+	pages = kcalloc(lpages, sizeof(struct page *), GFP_KERNEL);
 	if (!pages)
 		goto out_free;
 
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index d9f5a60dd59b..0a7dc941aaf4 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -9,7 +9,7 @@
 #include <linux/stat.h>
 #include <linux/buffer_head.h>
 #include <linux/slab.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 extern const struct reiserfs_key MIN_KEY;
 
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 54fdf196bfb2..5739cb99de7b 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -10,7 +10,7 @@
  * and using buffers obtained after all above.
  */
 
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/time.h>
 #include "reiserfs.h"
 #include <linux/buffer_head.h>
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index db9e80ba53a0..751dd3f4346b 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -6,7 +6,7 @@
 #include "reiserfs.h"
 #include "acl.h"
 #include "xattr.h"
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/pagemap.h>
 #include <linux/swap.h>
 #include <linux/writeback.h>
diff --git a/fs/reiserfs/ibalance.c b/fs/reiserfs/ibalance.c
index 73231b1ebdbe..b751eea32e20 100644
--- a/fs/reiserfs/ibalance.c
+++ b/fs/reiserfs/ibalance.c
@@ -2,7 +2,7 @@
  * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
  */
 
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/string.h>
 #include <linux/time.h>
 #include "reiserfs.h"
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 63b2b0ec49e6..a7eec9888f10 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -11,7 +11,7 @@
 #include <linux/pagemap.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/unaligned.h>
 #include <linux/buffer_head.h>
 #include <linux/mpage.h>
diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c
index 501ed6811a2b..6ec8a30a0911 100644
--- a/fs/reiserfs/ioctl.c
+++ b/fs/reiserfs/ioctl.c
@@ -7,7 +7,7 @@
 #include <linux/mount.h>
 #include "reiserfs.h"
 #include <linux/time.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/pagemap.h>
 #include <linux/compat.h>
 
diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
index cfaee912ee09..aca73dd73906 100644
--- a/fs/reiserfs/item_ops.c
+++ b/fs/reiserfs/item_ops.c
@@ -54,7 +54,7 @@ static void sd_print_item(struct item_head *ih, char *item)
 	} else {
 		struct stat_data *sd = (struct stat_data *)item;
 
-		printk("\t0%-6o | %6Lu | %2u | %d | %s\n", sd_v2_mode(sd),
+		printk("\t0%-6o | %6llu | %2u | %d | %s\n", sd_v2_mode(sd),
 		       (unsigned long long)sd_v2_size(sd), sd_v2_nlink(sd),
 		       sd_v2_rdev(sd), print_time(sd_v2_mtime(sd)));
 	}
@@ -408,7 +408,7 @@ static void direntry_print_item(struct item_head *ih, char *item)
 			namebuf[namelen + 2] = 0;
 		}
 
-		printk("%d:  %-15s%-15d%-15d%-15Ld%-15Ld(%s)\n",
+		printk("%d:  %-15s%-15d%-15d%-15lld%-15lld(%s)\n",
 		       i, namebuf,
 		       deh_dir_id(deh), deh_objectid(deh),
 		       GET_HASH_VALUE(deh_offset(deh)),
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index d6744c8b24e1..814dda3ec998 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -2,7 +2,7 @@
  * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
  */
 
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/string.h>
 #include <linux/time.h>
 #include "reiserfs.h"
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index c9b47e91baf8..ae1dc841db3a 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -17,7 +17,7 @@ static char off_buf[80];
 static char *reiserfs_cpu_offset(struct cpu_key *key)
 {
 	if (cpu_key_k_type(key) == TYPE_DIRENTRY)
-		sprintf(off_buf, "%Lu(%Lu)",
+		sprintf(off_buf, "%llu(%llu)",
 			(unsigned long long)
 			GET_HASH_VALUE(cpu_key_k_offset(key)),
 			(unsigned long long)
@@ -34,7 +34,7 @@ static char *le_offset(struct reiserfs_key *key)
 
 	version = le_key_version(key);
 	if (le_key_k_type(version, key) == TYPE_DIRENTRY)
-		sprintf(off_buf, "%Lu(%Lu)",
+		sprintf(off_buf, "%llu(%llu)",
 			(unsigned long long)
 			GET_HASH_VALUE(le_key_k_offset(version, key)),
 			(unsigned long long)
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index 02b0b7d0f7d5..621b9f381fe1 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -11,7 +11,7 @@
 #include <linux/module.h>
 #include <linux/time.h>
 #include <linux/seq_file.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include "reiserfs.h"
 #include <linux/init.h>
 #include <linux/proc_fs.h>
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index dd44468edc2b..24cbe013240f 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -2006,7 +2006,7 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th,
 					    &s_search_path) == POSITION_FOUND);
 
 	RFALSE(file_size > ROUND_UP(new_file_size),
-	       "PAP-5680: truncate did not finish: new_file_size %Ld, current %Ld, oid %d",
+	       "PAP-5680: truncate did not finish: new_file_size %lld, current %lld, oid %d",
 	       new_file_size, file_size, s_item_key.on_disk_key.k_objectid);
 
 update_and_out:
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index a392cef6acc6..709ea92d716f 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -15,7 +15,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/time.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include "reiserfs.h"
 #include "acl.h"
 #include "xattr.h"
@@ -331,7 +331,7 @@ static int finish_unfinished(struct super_block *s)
 			 * not completed truncate found. New size was
 			 * committed together with "save" link
 			 */
-			reiserfs_info(s, "Truncating %k to %Ld ..",
+			reiserfs_info(s, "Truncating %k to %lld ..",
 				      INODE_PKEY(inode), inode->i_size);
 
 			/* don't update modification time */
@@ -1577,7 +1577,7 @@ static int read_super_block(struct super_block *s, int offset)
 	rs = (struct reiserfs_super_block *)bh->b_data;
 	if (sb_blocksize(rs) != s->s_blocksize) {
 		reiserfs_warning(s, "sh-2011", "can't find a reiserfs "
-				 "filesystem on (dev %s, block %Lu, size %lu)",
+				 "filesystem on (dev %s, block %llu, size %lu)",
 				 s->s_id,
 				 (unsigned long long)bh->b_blocknr,
 				 s->s_blocksize);
@@ -2441,8 +2441,7 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type,
 	struct buffer_head tmp_bh, *bh;
 
 	if (!current->journal_info) {
-		printk(KERN_WARNING "reiserfs: Quota write (off=%Lu, len=%Lu)"
-			" cancelled because transaction is not started.\n",
+		printk(KERN_WARNING "reiserfs: Quota write (off=%llu, len=%llu) cancelled because transaction is not started.\n",
 			(unsigned long long)off, (unsigned long long)len);
 		return -EIO;
 	}
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index ca416d099e7d..7c36898af402 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -45,7 +45,7 @@
 #include <linux/xattr.h>
 #include "xattr.h"
 #include "acl.h"
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <net/checksum.h>
 #include <linux/stat.h>
 #include <linux/quotaops.h>
@@ -84,6 +84,7 @@ static int xattr_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 static int xattr_unlink(struct inode *dir, struct dentry *dentry)
 {
 	int error;
+
 	BUG_ON(!mutex_is_locked(&dir->i_mutex));
 
 	mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_CHILD);
@@ -98,6 +99,7 @@ static int xattr_unlink(struct inode *dir, struct dentry *dentry)
 static int xattr_rmdir(struct inode *dir, struct dentry *dentry)
 {
 	int error;
+
 	BUG_ON(!mutex_is_locked(&dir->i_mutex));
 
 	mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_CHILD);
@@ -117,6 +119,7 @@ static struct dentry *open_xa_root(struct super_block *sb, int flags)
 {
 	struct dentry *privroot = REISERFS_SB(sb)->priv_root;
 	struct dentry *xaroot;
+
 	if (!privroot->d_inode)
 		return ERR_PTR(-ENODATA);
 
@@ -127,6 +130,7 @@ static struct dentry *open_xa_root(struct super_block *sb, int flags)
 		xaroot = ERR_PTR(-ENODATA);
 	else if (!xaroot->d_inode) {
 		int err = -ENODATA;
+
 		if (xattr_may_create(flags))
 			err = xattr_mkdir(privroot->d_inode, xaroot, 0700);
 		if (err) {
@@ -157,6 +161,7 @@ static struct dentry *open_xa_dir(const struct inode *inode, int flags)
 	xadir = lookup_one_len(namebuf, xaroot, strlen(namebuf));
 	if (!IS_ERR(xadir) && !xadir->d_inode) {
 		int err = -ENODATA;
+
 		if (xattr_may_create(flags))
 			err = xattr_mkdir(xaroot->d_inode, xadir, 0700);
 		if (err) {
@@ -188,6 +193,7 @@ fill_with_dentries(void *buf, const char *name, int namelen, loff_t offset,
 {
 	struct reiserfs_dentry_buf *dbuf = buf;
 	struct dentry *dentry;
+
 	WARN_ON_ONCE(!mutex_is_locked(&dbuf->xadir->d_inode->i_mutex));
 
 	if (dbuf->count == ARRAY_SIZE(dbuf->dentries))
@@ -218,6 +224,7 @@ static void
 cleanup_dentry_buf(struct reiserfs_dentry_buf *buf)
 {
 	int i;
+
 	for (i = 0; i < buf->count; i++)
 		if (buf->dentries[i])
 			dput(buf->dentries[i]);
@@ -283,11 +290,13 @@ static int reiserfs_for_each_xattr(struct inode *inode,
 		int blocks = JOURNAL_PER_BALANCE_CNT * 2 + 2 +
 			     4 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb);
 		struct reiserfs_transaction_handle th;
+
 		reiserfs_write_lock(inode->i_sb);
 		err = journal_begin(&th, inode->i_sb, blocks);
 		reiserfs_write_unlock(inode->i_sb);
 		if (!err) {
 			int jerror;
+
 			mutex_lock_nested(&dir->d_parent->d_inode->i_mutex,
 					  I_MUTEX_XATTR);
 			err = action(dir, data);
@@ -340,6 +349,7 @@ static int chown_one_xattr(struct dentry *dentry, void *data)
 int reiserfs_delete_xattrs(struct inode *inode)
 {
 	int err = reiserfs_for_each_xattr(inode, delete_one_xattr, NULL);
+
 	if (err)
 		reiserfs_warning(inode->i_sb, "jdm-20004",
 				 "Couldn't delete all xattrs (%d)\n", err);
@@ -350,6 +360,7 @@ int reiserfs_delete_xattrs(struct inode *inode)
 int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
 {
 	int err = reiserfs_for_each_xattr(inode, chown_one_xattr, attrs);
+
 	if (err)
 		reiserfs_warning(inode->i_sb, "jdm-20007",
 				 "Couldn't chown all xattrs (%d)\n", err);
@@ -439,6 +450,7 @@ int reiserfs_commit_write(struct file *f, struct page *page,
 static void update_ctime(struct inode *inode)
 {
 	struct timespec now = current_fs_time(inode->i_sb);
+
 	if (inode_unhashed(inode) || !inode->i_nlink ||
 	    timespec_equal(&inode->i_ctime, &now))
 		return;
@@ -514,6 +526,7 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
 		size_t chunk;
 		size_t skip = 0;
 		size_t page_offset = (file_pos & (PAGE_CACHE_SIZE - 1));
+
 		if (buffer_size - buffer_pos > PAGE_CACHE_SIZE)
 			chunk = PAGE_CACHE_SIZE;
 		else
@@ -530,6 +543,7 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
 
 		if (file_pos == 0) {
 			struct reiserfs_xattr_header *rxh;
+
 			skip = file_pos = sizeof(struct reiserfs_xattr_header);
 			if (chunk + skip > PAGE_CACHE_SIZE)
 				chunk = PAGE_CACHE_SIZE - skip;
@@ -659,6 +673,7 @@ reiserfs_xattr_get(struct inode *inode, const char *name, void *buffer,
 		size_t chunk;
 		char *data;
 		size_t skip = 0;
+
 		if (isize - file_pos > PAGE_CACHE_SIZE)
 			chunk = PAGE_CACHE_SIZE;
 		else
@@ -792,6 +807,7 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 int reiserfs_removexattr(struct dentry *dentry, const char *name)
 {
 	const struct xattr_handler *handler;
+
 	handler = find_xattr_handler_prefix(dentry->d_sb->s_xattr, name);
 
 	if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
@@ -813,9 +829,11 @@ static int listxattr_filler(void *buf, const char *name, int namelen,
 {
 	struct listxattr_buf *b = (struct listxattr_buf *)buf;
 	size_t size;
+
 	if (name[0] != '.' ||
 	    (namelen != 1 && (name[1] != '.' || namelen != 2))) {
 		const struct xattr_handler *handler;
+
 		handler = find_xattr_handler_prefix(b->dentry->d_sb->s_xattr,
 						    name);
 		if (!handler)	/* Unsupported xattr name */
@@ -885,6 +903,7 @@ static int create_privroot(struct dentry *dentry)
 {
 	int err;
 	struct inode *inode = dentry->d_parent->d_inode;
+
 	WARN_ON_ONCE(!mutex_is_locked(&inode->i_mutex));
 
 	err = xattr_mkdir(inode, dentry, 0700);
@@ -1015,6 +1034,7 @@ int reiserfs_xattr_init(struct super_block *s, int mount_flags)
 		mutex_lock(&privroot->d_inode->i_mutex);
 		if (!REISERFS_SB(s)->xattr_root) {
 			struct dentry *dentry;
+
 			dentry = lookup_one_len(XAROOT_NAME, privroot,
 						strlen(XAROOT_NAME));
 			if (!IS_ERR(dentry))
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 44503e293790..4b34b9dc03dd 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -9,7 +9,7 @@
 #include <linux/posix_acl_xattr.h>
 #include "xattr.h"
 #include "acl.h"
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 static int __reiserfs_set_acl(struct reiserfs_transaction_handle *th,
 			    struct inode *inode, int type,
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c
index 800a3cef6f62..e7f8939a4cb5 100644
--- a/fs/reiserfs/xattr_security.c
+++ b/fs/reiserfs/xattr_security.c
@@ -6,7 +6,7 @@
 #include <linux/slab.h>
 #include "xattr.h"
 #include <linux/security.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 static int
 security_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
diff --git a/fs/reiserfs/xattr_trusted.c b/fs/reiserfs/xattr_trusted.c
index a0035719f66b..5eeb0c48ba46 100644
--- a/fs/reiserfs/xattr_trusted.c
+++ b/fs/reiserfs/xattr_trusted.c
@@ -5,7 +5,7 @@
 #include <linux/pagemap.h>
 #include <linux/xattr.h>
 #include "xattr.h"
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 static int
 trusted_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
diff --git a/fs/reiserfs/xattr_user.c b/fs/reiserfs/xattr_user.c
index 8667491ae7c3..e50eab046471 100644
--- a/fs/reiserfs/xattr_user.c
+++ b/fs/reiserfs/xattr_user.c
@@ -4,7 +4,7 @@
 #include <linux/pagemap.h>
 #include <linux/xattr.h>
 #include "xattr.h"
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 static int
 user_get(struct dentry *dentry, const char *name, void *buffer, size_t size,
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index ef90e8bca95a..e98dd88197d5 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -56,6 +56,8 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/fs.h>
@@ -380,7 +382,7 @@ static struct inode *romfs_iget(struct super_block *sb, unsigned long pos)
 eio:
 	ret = -EIO;
 error:
-	printk(KERN_ERR "ROMFS: read error for inode 0x%lx\n", pos);
+	pr_err("read error for inode 0x%lx\n", pos);
 	return ERR_PTR(ret);
 }
 
@@ -390,6 +392,7 @@ error:
 static struct inode *romfs_alloc_inode(struct super_block *sb)
 {
 	struct romfs_inode_info *inode;
+
 	inode = kmem_cache_alloc(romfs_inode_cachep, GFP_KERNEL);
 	return inode ? &inode->vfs_inode : NULL;
 }
@@ -400,6 +403,7 @@ static struct inode *romfs_alloc_inode(struct super_block *sb)
 static void romfs_i_callback(struct rcu_head *head)
 {
 	struct inode *inode = container_of(head, struct inode, i_rcu);
+
 	kmem_cache_free(romfs_inode_cachep, ROMFS_I(inode));
 }
 
@@ -507,15 +511,13 @@ static int romfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (rsb->word0 != ROMSB_WORD0 || rsb->word1 != ROMSB_WORD1 ||
 	    img_size < ROMFH_SIZE) {
 		if (!silent)
-			printk(KERN_WARNING "VFS:"
-			       " Can't find a romfs filesystem on dev %s.\n",
+			pr_warn("VFS: Can't find a romfs filesystem on dev %s.\n",
 			       sb->s_id);
 		goto error_rsb_inval;
 	}
 
 	if (romfs_checksum(rsb, min_t(size_t, img_size, 512))) {
-		printk(KERN_ERR "ROMFS: bad initial checksum on dev %s.\n",
-		       sb->s_id);
+		pr_err("bad initial checksum on dev %s.\n", sb->s_id);
 		goto error_rsb_inval;
 	}
 
@@ -523,8 +525,8 @@ static int romfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	len = strnlen(rsb->name, ROMFS_MAXFN);
 	if (!silent)
-		printk(KERN_NOTICE "ROMFS: Mounting image '%*.*s' through %s\n",
-		       (unsigned) len, (unsigned) len, rsb->name, storage);
+		pr_notice("Mounting image '%*.*s' through %s\n",
+			  (unsigned) len, (unsigned) len, rsb->name, storage);
 
 	kfree(rsb);
 	rsb = NULL;
@@ -614,7 +616,7 @@ static int __init init_romfs_fs(void)
 {
 	int ret;
 
-	printk(KERN_INFO "ROMFS MTD (C) 2007 Red Hat, Inc.\n");
+	pr_info("ROMFS MTD (C) 2007 Red Hat, Inc.\n");
 
 	romfs_inode_cachep =
 		kmem_cache_create("romfs_i",
@@ -623,13 +625,12 @@ static int __init init_romfs_fs(void)
 				  romfs_i_init_once);
 
 	if (!romfs_inode_cachep) {
-		printk(KERN_ERR
-		       "ROMFS error: Failed to initialise inode cache\n");
+		pr_err("Failed to initialise inode cache\n");
 		return -ENOMEM;
 	}
 	ret = register_filesystem(&romfs_fs_type);
 	if (ret) {
-		printk(KERN_ERR "ROMFS error: Failed to register filesystem\n");
+		pr_err("Failed to register filesystem\n");
 		goto error_register;
 	}
 	return 0;
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 3857b720cb1b..1d641bb108d2 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -8,10 +8,8 @@
 #include <linux/fs.h>
 #include <linux/export.h>
 #include <linux/seq_file.h>
-#include <linux/vmalloc.h>
 #include <linux/slab.h>
 #include <linux/cred.h>
-#include <linux/mm.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -32,16 +30,6 @@ static void seq_set_overflow(struct seq_file *m)
 	m->count = m->size;
 }
 
-static void *seq_buf_alloc(unsigned long size)
-{
-	void *buf;
-
-	buf = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
-	if (!buf && size > PAGE_SIZE)
-		buf = vmalloc(size);
-	return buf;
-}
-
 /**
  *	seq_open -	initialize sequential file
  *	@file: file we initialize
@@ -108,7 +96,7 @@ static int traverse(struct seq_file *m, loff_t offset)
 		return 0;
 	}
 	if (!m->buf) {
-		m->buf = seq_buf_alloc(m->size = PAGE_SIZE);
+		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
 		if (!m->buf)
 			return -ENOMEM;
 	}
@@ -147,9 +135,9 @@ static int traverse(struct seq_file *m, loff_t offset)
 
 Eoverflow:
 	m->op->stop(m, p);
-	kvfree(m->buf);
+	kfree(m->buf);
 	m->count = 0;
-	m->buf = seq_buf_alloc(m->size <<= 1);
+	m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
 	return !m->buf ? -ENOMEM : -EAGAIN;
 }
 
@@ -204,7 +192,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 
 	/* grab buffer if we didn't have one */
 	if (!m->buf) {
-		m->buf = seq_buf_alloc(m->size = PAGE_SIZE);
+		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
 		if (!m->buf)
 			goto Enomem;
 	}
@@ -244,9 +232,9 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 		if (m->count < m->size)
 			goto Fill;
 		m->op->stop(m, p);
-		kvfree(m->buf);
+		kfree(m->buf);
 		m->count = 0;
-		m->buf = seq_buf_alloc(m->size <<= 1);
+		m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
 		if (!m->buf)
 			goto Enomem;
 		m->version = 0;
@@ -362,7 +350,7 @@ EXPORT_SYMBOL(seq_lseek);
 int seq_release(struct inode *inode, struct file *file)
 {
 	struct seq_file *m = file->private_data;
-	kvfree(m->buf);
+	kfree(m->buf);
 	kfree(m);
 	return 0;
 }
@@ -617,13 +605,13 @@ EXPORT_SYMBOL(single_open);
 int single_open_size(struct file *file, int (*show)(struct seq_file *, void *),
 		void *data, size_t size)
 {
-	char *buf = seq_buf_alloc(size);
+	char *buf = kmalloc(size, GFP_KERNEL);
 	int ret;
 	if (!buf)
 		return -ENOMEM;
 	ret = single_open(file, show, data);
 	if (ret) {
-		kvfree(buf);
+		kfree(buf);
 		return ret;
 	}
 	((struct seq_file *)file->private_data)->buf = buf;
diff --git a/fs/squashfs/file_direct.c b/fs/squashfs/file_direct.c
index 62a0de6632e1..43e7a7eddac0 100644
--- a/fs/squashfs/file_direct.c
+++ b/fs/squashfs/file_direct.c
@@ -44,7 +44,7 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize)
 
 	pages = end_index - start_index + 1;
 
-	page = kmalloc(sizeof(void *) * pages, GFP_KERNEL);
+	page = kmalloc_array(pages, sizeof(void *), GFP_KERNEL);
 	if (page == NULL)
 		return res;
 
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 031c8d67fd51..5056babe00df 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -27,6 +27,8 @@
  * the filesystem.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/fs.h>
 #include <linux/vfs.h>
 #include <linux/slab.h>
@@ -448,8 +450,7 @@ static int __init init_squashfs_fs(void)
 		return err;
 	}
 
-	printk(KERN_INFO "squashfs: version 4.0 (2009/01/31) "
-		"Phillip Lougher\n");
+	pr_info("version 4.0 (2009/01/31) Phillip Lougher\n");
 
 	return 0;
 }
diff --git a/fs/ufs/Makefile b/fs/ufs/Makefile
index dd39980437fc..4d0e02b022b3 100644
--- a/fs/ufs/Makefile
+++ b/fs/ufs/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_UFS_FS) += ufs.o
 
 ufs-objs := balloc.o cylinder.o dir.o file.o ialloc.o inode.o \
 	    namei.o super.o symlink.o truncate.o util.o
+ccflags-$(CONFIG_UFS_DEBUG)    += -DDEBUG
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 61e8a9b021dd..7c580c97990e 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -158,16 +158,16 @@ out:
 
 /**
  * ufs_inode_getfrag() - allocate new fragment(s)
- * @inode - pointer to inode
- * @fragment - number of `fragment' which hold pointer
+ * @inode: pointer to inode
+ * @fragment: number of `fragment' which hold pointer
  *   to new allocated fragment(s)
- * @new_fragment - number of new allocated fragment(s)
- * @required - how many fragment(s) we require
- * @err - we set it if something wrong
- * @phys - pointer to where we save physical number of new allocated fragments,
+ * @new_fragment: number of new allocated fragment(s)
+ * @required: how many fragment(s) we require
+ * @err: we set it if something wrong
+ * @phys: pointer to where we save physical number of new allocated fragments,
  *   NULL if we allocate not data(indirect blocks for example).
- * @new - we set it if we allocate new block
- * @locked_page - for ufs_new_fragments()
+ * @new: we set it if we allocate new block
+ * @locked_page: for ufs_new_fragments()
  */
 static struct buffer_head *
 ufs_inode_getfrag(struct inode *inode, u64 fragment,
@@ -315,16 +315,16 @@ repeat2:
 
 /**
  * ufs_inode_getblock() - allocate new block
- * @inode - pointer to inode
- * @bh - pointer to block which hold "pointer" to new allocated block
- * @fragment - number of `fragment' which hold pointer
+ * @inode: pointer to inode
+ * @bh: pointer to block which hold "pointer" to new allocated block
+ * @fragment: number of `fragment' which hold pointer
  *   to new allocated block
- * @new_fragment - number of new allocated fragment
+ * @new_fragment: number of new allocated fragment
  *  (block will hold this fragment and also uspi->s_fpb-1)
- * @err - see ufs_inode_getfrag()
- * @phys - see ufs_inode_getfrag()
- * @new - see ufs_inode_getfrag()
- * @locked_page - see ufs_inode_getfrag()
+ * @err: see ufs_inode_getfrag()
+ * @phys: see ufs_inode_getfrag()
+ * @new: see ufs_inode_getfrag()
+ * @locked_page: see ufs_inode_getfrag()
  */
 static struct buffer_head *
 ufs_inode_getblock(struct inode *inode, struct buffer_head *bh,
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index b879f1ba3439..da73801301d5 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -65,7 +65,6 @@
  * Evgeniy Dushistov <dushistov@mail.ru>, 2007
  */
 
-
 #include <linux/exportfs.h>
 #include <linux/module.h>
 #include <linux/bitops.h>
@@ -172,73 +171,73 @@ static void ufs_print_super_stuff(struct super_block *sb,
 {
 	u32 magic = fs32_to_cpu(sb, usb3->fs_magic);
 
-	printk("ufs_print_super_stuff\n");
-	printk("  magic:     0x%x\n", magic);
+	pr_debug("ufs_print_super_stuff\n");
+	pr_debug("  magic:     0x%x\n", magic);
 	if (fs32_to_cpu(sb, usb3->fs_magic) == UFS2_MAGIC) {
-		printk("  fs_size:   %llu\n", (unsigned long long)
-		       fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size));
-		printk("  fs_dsize:  %llu\n", (unsigned long long)
-		       fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize));
-		printk("  bsize:         %u\n",
-		       fs32_to_cpu(sb, usb1->fs_bsize));
-		printk("  fsize:         %u\n",
-		       fs32_to_cpu(sb, usb1->fs_fsize));
-		printk("  fs_volname:  %s\n", usb2->fs_un.fs_u2.fs_volname);
-		printk("  fs_sblockloc: %llu\n", (unsigned long long)
-		       fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc));
-		printk("  cs_ndir(No of dirs):  %llu\n", (unsigned long long)
-		       fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir));
-		printk("  cs_nbfree(No of free blocks):  %llu\n",
-		       (unsigned long long)
-		       fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree));
-		printk(KERN_INFO"  cs_nifree(Num of free inodes): %llu\n",
-		       (unsigned long long)
-		       fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree));
-		printk(KERN_INFO"  cs_nffree(Num of free frags): %llu\n",
-		       (unsigned long long)
-		       fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree));
-		printk(KERN_INFO"  fs_maxsymlinklen: %u\n",
-		       fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen));
+		pr_debug("  fs_size:   %llu\n", (unsigned long long)
+			 fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size));
+		pr_debug("  fs_dsize:  %llu\n", (unsigned long long)
+			 fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize));
+		pr_debug("  bsize:         %u\n",
+			 fs32_to_cpu(sb, usb1->fs_bsize));
+		pr_debug("  fsize:         %u\n",
+			 fs32_to_cpu(sb, usb1->fs_fsize));
+		pr_debug("  fs_volname:  %s\n", usb2->fs_un.fs_u2.fs_volname);
+		pr_debug("  fs_sblockloc: %llu\n", (unsigned long long)
+			 fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc));
+		pr_debug("  cs_ndir(No of dirs):  %llu\n", (unsigned long long)
+			 fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir));
+		pr_debug("  cs_nbfree(No of free blocks):  %llu\n",
+			 (unsigned long long)
+			 fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree));
+		pr_info("  cs_nifree(Num of free inodes): %llu\n",
+			(unsigned long long)
+			fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree));
+		pr_info("  cs_nffree(Num of free frags): %llu\n",
+			(unsigned long long)
+			fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree));
+		pr_info("  fs_maxsymlinklen: %u\n",
+			fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen));
 	} else {
-		printk(" sblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_sblkno));
-		printk(" cblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_cblkno));
-		printk(" iblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_iblkno));
-		printk(" dblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_dblkno));
-		printk(" cgoffset:    %u\n",
-		       fs32_to_cpu(sb, usb1->fs_cgoffset));
-		printk(" ~cgmask:     0x%x\n",
-		       ~fs32_to_cpu(sb, usb1->fs_cgmask));
-		printk(" size:        %u\n", fs32_to_cpu(sb, usb1->fs_size));
-		printk(" dsize:       %u\n", fs32_to_cpu(sb, usb1->fs_dsize));
-		printk(" ncg:         %u\n", fs32_to_cpu(sb, usb1->fs_ncg));
-		printk(" bsize:       %u\n", fs32_to_cpu(sb, usb1->fs_bsize));
-		printk(" fsize:       %u\n", fs32_to_cpu(sb, usb1->fs_fsize));
-		printk(" frag:        %u\n", fs32_to_cpu(sb, usb1->fs_frag));
-		printk(" fragshift:   %u\n",
-		       fs32_to_cpu(sb, usb1->fs_fragshift));
-		printk(" ~fmask:      %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask));
-		printk(" fshift:      %u\n", fs32_to_cpu(sb, usb1->fs_fshift));
-		printk(" sbsize:      %u\n", fs32_to_cpu(sb, usb1->fs_sbsize));
-		printk(" spc:         %u\n", fs32_to_cpu(sb, usb1->fs_spc));
-		printk(" cpg:         %u\n", fs32_to_cpu(sb, usb1->fs_cpg));
-		printk(" ipg:         %u\n", fs32_to_cpu(sb, usb1->fs_ipg));
-		printk(" fpg:         %u\n", fs32_to_cpu(sb, usb1->fs_fpg));
-		printk(" csaddr:      %u\n", fs32_to_cpu(sb, usb1->fs_csaddr));
-		printk(" cssize:      %u\n", fs32_to_cpu(sb, usb1->fs_cssize));
-		printk(" cgsize:      %u\n", fs32_to_cpu(sb, usb1->fs_cgsize));
-		printk(" fstodb:      %u\n",
-		       fs32_to_cpu(sb, usb1->fs_fsbtodb));
-		printk(" nrpos:       %u\n", fs32_to_cpu(sb, usb3->fs_nrpos));
-		printk(" ndir         %u\n",
-		       fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir));
-		printk(" nifree       %u\n",
-		       fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree));
-		printk(" nbfree       %u\n",
-		       fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree));
-		printk(" nffree       %u\n",
-		       fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree));
+		pr_debug(" sblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_sblkno));
+		pr_debug(" cblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_cblkno));
+		pr_debug(" iblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_iblkno));
+		pr_debug(" dblkno:      %u\n", fs32_to_cpu(sb, usb1->fs_dblkno));
+		pr_debug(" cgoffset:    %u\n",
+			 fs32_to_cpu(sb, usb1->fs_cgoffset));
+		pr_debug(" ~cgmask:     0x%x\n",
+			 ~fs32_to_cpu(sb, usb1->fs_cgmask));
+		pr_debug(" size:        %u\n", fs32_to_cpu(sb, usb1->fs_size));
+		pr_debug(" dsize:       %u\n", fs32_to_cpu(sb, usb1->fs_dsize));
+		pr_debug(" ncg:         %u\n", fs32_to_cpu(sb, usb1->fs_ncg));
+		pr_debug(" bsize:       %u\n", fs32_to_cpu(sb, usb1->fs_bsize));
+		pr_debug(" fsize:       %u\n", fs32_to_cpu(sb, usb1->fs_fsize));
+		pr_debug(" frag:        %u\n", fs32_to_cpu(sb, usb1->fs_frag));
+		pr_debug(" fragshift:   %u\n",
+			 fs32_to_cpu(sb, usb1->fs_fragshift));
+		pr_debug(" ~fmask:      %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask));
+		pr_debug(" fshift:      %u\n", fs32_to_cpu(sb, usb1->fs_fshift));
+		pr_debug(" sbsize:      %u\n", fs32_to_cpu(sb, usb1->fs_sbsize));
+		pr_debug(" spc:         %u\n", fs32_to_cpu(sb, usb1->fs_spc));
+		pr_debug(" cpg:         %u\n", fs32_to_cpu(sb, usb1->fs_cpg));
+		pr_debug(" ipg:         %u\n", fs32_to_cpu(sb, usb1->fs_ipg));
+		pr_debug(" fpg:         %u\n", fs32_to_cpu(sb, usb1->fs_fpg));
+		pr_debug(" csaddr:      %u\n", fs32_to_cpu(sb, usb1->fs_csaddr));
+		pr_debug(" cssize:      %u\n", fs32_to_cpu(sb, usb1->fs_cssize));
+		pr_debug(" cgsize:      %u\n", fs32_to_cpu(sb, usb1->fs_cgsize));
+		pr_debug(" fstodb:      %u\n",
+			 fs32_to_cpu(sb, usb1->fs_fsbtodb));
+		pr_debug(" nrpos:       %u\n", fs32_to_cpu(sb, usb3->fs_nrpos));
+		pr_debug(" ndir         %u\n",
+			 fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir));
+		pr_debug(" nifree       %u\n",
+			 fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree));
+		pr_debug(" nbfree       %u\n",
+			 fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree));
+		pr_debug(" nffree       %u\n",
+			 fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree));
 	}
-	printk("\n");
+	pr_debug("\n");
 }
 
 /*
@@ -247,38 +246,38 @@ static void ufs_print_super_stuff(struct super_block *sb,
 static void ufs_print_cylinder_stuff(struct super_block *sb,
 				     struct ufs_cylinder_group *cg)
 {
-	printk("\nufs_print_cylinder_stuff\n");
-	printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group));
-	printk("  magic:        %x\n", fs32_to_cpu(sb, cg->cg_magic));
-	printk("  time:         %u\n", fs32_to_cpu(sb, cg->cg_time));
-	printk("  cgx:          %u\n", fs32_to_cpu(sb, cg->cg_cgx));
-	printk("  ncyl:         %u\n", fs16_to_cpu(sb, cg->cg_ncyl));
-	printk("  niblk:        %u\n", fs16_to_cpu(sb, cg->cg_niblk));
-	printk("  ndblk:        %u\n", fs32_to_cpu(sb, cg->cg_ndblk));
-	printk("  cs_ndir:      %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir));
-	printk("  cs_nbfree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree));
-	printk("  cs_nifree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree));
-	printk("  cs_nffree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree));
-	printk("  rotor:        %u\n", fs32_to_cpu(sb, cg->cg_rotor));
-	printk("  frotor:       %u\n", fs32_to_cpu(sb, cg->cg_frotor));
-	printk("  irotor:       %u\n", fs32_to_cpu(sb, cg->cg_irotor));
-	printk("  frsum:        %u, %u, %u, %u, %u, %u, %u, %u\n",
+	pr_debug("\nufs_print_cylinder_stuff\n");
+	pr_debug("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group));
+	pr_debug("  magic:        %x\n", fs32_to_cpu(sb, cg->cg_magic));
+	pr_debug("  time:         %u\n", fs32_to_cpu(sb, cg->cg_time));
+	pr_debug("  cgx:          %u\n", fs32_to_cpu(sb, cg->cg_cgx));
+	pr_debug("  ncyl:         %u\n", fs16_to_cpu(sb, cg->cg_ncyl));
+	pr_debug("  niblk:        %u\n", fs16_to_cpu(sb, cg->cg_niblk));
+	pr_debug("  ndblk:        %u\n", fs32_to_cpu(sb, cg->cg_ndblk));
+	pr_debug("  cs_ndir:      %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_ndir));
+	pr_debug("  cs_nbfree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nbfree));
+	pr_debug("  cs_nifree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nifree));
+	pr_debug("  cs_nffree:    %u\n", fs32_to_cpu(sb, cg->cg_cs.cs_nffree));
+	pr_debug("  rotor:        %u\n", fs32_to_cpu(sb, cg->cg_rotor));
+	pr_debug("  frotor:       %u\n", fs32_to_cpu(sb, cg->cg_frotor));
+	pr_debug("  irotor:       %u\n", fs32_to_cpu(sb, cg->cg_irotor));
+	pr_debug("  frsum:        %u, %u, %u, %u, %u, %u, %u, %u\n",
 	    fs32_to_cpu(sb, cg->cg_frsum[0]), fs32_to_cpu(sb, cg->cg_frsum[1]),
 	    fs32_to_cpu(sb, cg->cg_frsum[2]), fs32_to_cpu(sb, cg->cg_frsum[3]),
 	    fs32_to_cpu(sb, cg->cg_frsum[4]), fs32_to_cpu(sb, cg->cg_frsum[5]),
 	    fs32_to_cpu(sb, cg->cg_frsum[6]), fs32_to_cpu(sb, cg->cg_frsum[7]));
-	printk("  btotoff:      %u\n", fs32_to_cpu(sb, cg->cg_btotoff));
-	printk("  boff:         %u\n", fs32_to_cpu(sb, cg->cg_boff));
-	printk("  iuseoff:      %u\n", fs32_to_cpu(sb, cg->cg_iusedoff));
-	printk("  freeoff:      %u\n", fs32_to_cpu(sb, cg->cg_freeoff));
-	printk("  nextfreeoff:  %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff));
-	printk("  clustersumoff %u\n",
-	       fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff));
-	printk("  clusteroff    %u\n",
-	       fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff));
-	printk("  nclusterblks  %u\n",
-	       fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks));
-	printk("\n");
+	pr_debug("  btotoff:      %u\n", fs32_to_cpu(sb, cg->cg_btotoff));
+	pr_debug("  boff:         %u\n", fs32_to_cpu(sb, cg->cg_boff));
+	pr_debug("  iuseoff:      %u\n", fs32_to_cpu(sb, cg->cg_iusedoff));
+	pr_debug("  freeoff:      %u\n", fs32_to_cpu(sb, cg->cg_freeoff));
+	pr_debug("  nextfreeoff:  %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff));
+	pr_debug("  clustersumoff %u\n",
+		 fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff));
+	pr_debug("  clusteroff    %u\n",
+		 fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff));
+	pr_debug("  nclusterblks  %u\n",
+		 fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks));
+	pr_debug("\n");
 }
 #else
 #  define ufs_print_super_stuff(sb, usb1, usb2, usb3) /**/
@@ -287,13 +286,12 @@ static void ufs_print_cylinder_stuff(struct super_block *sb,
 
 static const struct super_operations ufs_super_ops;
 
-static char error_buf[1024];
-
 void ufs_error (struct super_block * sb, const char * function,
 	const char * fmt, ...)
 {
 	struct ufs_sb_private_info * uspi;
 	struct ufs_super_block_first * usb1;
+	struct va_format vaf;
 	va_list args;
 
 	uspi = UFS_SB(sb)->s_uspi;
@@ -305,20 +303,21 @@ void ufs_error (struct super_block * sb, const char * function,
 		ufs_mark_sb_dirty(sb);
 		sb->s_flags |= MS_RDONLY;
 	}
-	va_start (args, fmt);
-	vsnprintf (error_buf, sizeof(error_buf), fmt, args);
-	va_end (args);
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
 	switch (UFS_SB(sb)->s_mount_opt & UFS_MOUNT_ONERROR) {
 	case UFS_MOUNT_ONERROR_PANIC:
-		panic ("UFS-fs panic (device %s): %s: %s\n", 
-			sb->s_id, function, error_buf);
+		panic("panic (device %s): %s: %pV\n",
+		      sb->s_id, function, &vaf);
 
 	case UFS_MOUNT_ONERROR_LOCK:
 	case UFS_MOUNT_ONERROR_UMOUNT:
 	case UFS_MOUNT_ONERROR_REPAIR:
-		printk (KERN_CRIT "UFS-fs error (device %s): %s: %s\n",
-			sb->s_id, function, error_buf);
-	}		
+		pr_crit("error (device %s): %s: %pV\n",
+			sb->s_id, function, &vaf);
+	}
+	va_end(args);
 }
 
 void ufs_panic (struct super_block * sb, const char * function,
@@ -326,6 +325,7 @@ void ufs_panic (struct super_block * sb, const char * function,
 {
 	struct ufs_sb_private_info * uspi;
 	struct ufs_super_block_first * usb1;
+	struct va_format vaf;
 	va_list args;
 	
 	uspi = UFS_SB(sb)->s_uspi;
@@ -336,24 +336,27 @@ void ufs_panic (struct super_block * sb, const char * function,
 		ubh_mark_buffer_dirty(USPI_UBH(uspi));
 		ufs_mark_sb_dirty(sb);
 	}
-	va_start (args, fmt);
-	vsnprintf (error_buf, sizeof(error_buf), fmt, args);
-	va_end (args);
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
 	sb->s_flags |= MS_RDONLY;
-	printk (KERN_CRIT "UFS-fs panic (device %s): %s: %s\n",
-		sb->s_id, function, error_buf);
+	pr_crit("panic (device %s): %s: %pV\n",
+		sb->s_id, function, &vaf);
+	va_end(args);
 }
 
 void ufs_warning (struct super_block * sb, const char * function,
 	const char * fmt, ...)
 {
+	struct va_format vaf;
 	va_list args;
 
-	va_start (args, fmt);
-	vsnprintf (error_buf, sizeof(error_buf), fmt, args);
-	va_end (args);
-	printk (KERN_WARNING "UFS-fs warning (device %s): %s: %s\n",
-		sb->s_id, function, error_buf);
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	pr_warn("(device %s): %s: %pV\n",
+		sb->s_id, function, &vaf);
+	va_end(args);
 }
 
 enum {
@@ -464,14 +467,12 @@ static int ufs_parse_options (char * options, unsigned * mount_options)
 			ufs_set_opt (*mount_options, ONERROR_UMOUNT);
 			break;
 		case Opt_onerror_repair:
-			printk("UFS-fs: Unable to do repair on error, "
-				"will lock lock instead\n");
+			pr_err("Unable to do repair on error, will lock lock instead\n");
 			ufs_clear_opt (*mount_options, ONERROR);
 			ufs_set_opt (*mount_options, ONERROR_REPAIR);
 			break;
 		default:
-			printk("UFS-fs: Invalid option: \"%s\" "
-					"or missing value\n", p);
+			pr_err("Invalid option: \"%s\" or missing value\n", p);
 			return 0;
 		}
 	}
@@ -788,8 +789,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 
 #ifndef CONFIG_UFS_FS_WRITE
 	if (!(sb->s_flags & MS_RDONLY)) {
-		printk("ufs was compiled with read-only support, "
-		       "can't be mounted as read-write\n");
+		pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n");
 		return -EROFS;
 	}
 #endif
@@ -812,12 +812,12 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 	sbi->s_mount_opt = 0;
 	ufs_set_opt (sbi->s_mount_opt, ONERROR_LOCK);
 	if (!ufs_parse_options ((char *) data, &sbi->s_mount_opt)) {
-		printk("wrong mount options\n");
+		pr_err("wrong mount options\n");
 		goto failed;
 	}
 	if (!(sbi->s_mount_opt & UFS_MOUNT_UFSTYPE)) {
 		if (!silent)
-			printk("You didn't specify the type of your ufs filesystem\n\n"
+			pr_err("You didn't specify the type of your ufs filesystem\n\n"
 			"mount -t ufs -o ufstype="
 			"sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ...\n\n"
 			">>>WARNING<<< Wrong ufstype may corrupt your filesystem, "
@@ -868,7 +868,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		break;
 
 	case UFS_MOUNT_UFSTYPE_SUNOS:
-		UFSD(("ufstype=sunos\n"))
+		UFSD("ufstype=sunos\n");
 		uspi->s_fsize = block_size = 1024;
 		uspi->s_fmask = ~(1024 - 1);
 		uspi->s_fshift = 10;
@@ -900,7 +900,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
 		if (!(sb->s_flags & MS_RDONLY)) {
 			if (!silent)
-				printk(KERN_INFO "ufstype=old is supported read-only\n");
+				pr_info("ufstype=old is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
 		}
 		break;
@@ -916,7 +916,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
 		if (!(sb->s_flags & MS_RDONLY)) {
 			if (!silent)
-				printk(KERN_INFO "ufstype=nextstep is supported read-only\n");
+				pr_info("ufstype=nextstep is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
 		}
 		break;
@@ -932,7 +932,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
 		if (!(sb->s_flags & MS_RDONLY)) {
 			if (!silent)
-				printk(KERN_INFO "ufstype=nextstep-cd is supported read-only\n");
+				pr_info("ufstype=nextstep-cd is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
 		}
 		break;
@@ -948,7 +948,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD;
 		if (!(sb->s_flags & MS_RDONLY)) {
 			if (!silent)
-				printk(KERN_INFO "ufstype=openstep is supported read-only\n");
+				pr_info("ufstype=openstep is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
 		}
 		break;
@@ -963,19 +963,19 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
 		if (!(sb->s_flags & MS_RDONLY)) {
 			if (!silent)
-				printk(KERN_INFO "ufstype=hp is supported read-only\n");
+				pr_info("ufstype=hp is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
  		}
  		break;
 	default:
 		if (!silent)
-			printk("unknown ufstype\n");
+			pr_err("unknown ufstype\n");
 		goto failed;
 	}
 	
 again:	
 	if (!sb_set_blocksize(sb, block_size)) {
-		printk(KERN_ERR "UFS: failed to set blocksize\n");
+		pr_err("failed to set blocksize\n");
 		goto failed;
 	}
 
@@ -1034,7 +1034,7 @@ again:
 		goto again;
 	}
 	if (!silent)
-		printk("ufs_read_super: bad magic number\n");
+		pr_err("%s(): bad magic number\n", __func__);
 	goto failed;
 
 magic_found:
@@ -1048,33 +1048,33 @@ magic_found:
 	uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift);
 
 	if (!is_power_of_2(uspi->s_fsize)) {
-		printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n",
-			uspi->s_fsize);
-			goto failed;
+		pr_err("%s(): fragment size %u is not a power of 2\n",
+		       __func__, uspi->s_fsize);
+		goto failed;
 	}
 	if (uspi->s_fsize < 512) {
-		printk(KERN_ERR "ufs_read_super: fragment size %u is too small\n",
-			uspi->s_fsize);
+		pr_err("%s(): fragment size %u is too small\n",
+		       __func__, uspi->s_fsize);
 		goto failed;
 	}
 	if (uspi->s_fsize > 4096) {
-		printk(KERN_ERR "ufs_read_super: fragment size %u is too large\n",
-			uspi->s_fsize);
+		pr_err("%s(): fragment size %u is too large\n",
+		       __func__, uspi->s_fsize);
 		goto failed;
 	}
 	if (!is_power_of_2(uspi->s_bsize)) {
-		printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n",
-			uspi->s_bsize);
+		pr_err("%s(): block size %u is not a power of 2\n",
+		       __func__, uspi->s_bsize);
 		goto failed;
 	}
 	if (uspi->s_bsize < 4096) {
-		printk(KERN_ERR "ufs_read_super: block size %u is too small\n",
-			uspi->s_bsize);
+		pr_err("%s(): block size %u is too small\n",
+		       __func__, uspi->s_bsize);
 		goto failed;
 	}
 	if (uspi->s_bsize / uspi->s_fsize > 8) {
-		printk(KERN_ERR "ufs_read_super: too many fragments per block (%u)\n",
-			uspi->s_bsize / uspi->s_fsize);
+		pr_err("%s(): too many fragments per block (%u)\n",
+		       __func__, uspi->s_bsize / uspi->s_fsize);
 		goto failed;
 	}
 	if (uspi->s_fsize != block_size || uspi->s_sbsize != super_block_size) {
@@ -1113,20 +1113,21 @@ magic_found:
 			UFSD("fs is DEC OSF/1\n");
 			break;
 		case UFS_FSACTIVE:
-			printk("ufs_read_super: fs is active\n");
+			pr_err("%s(): fs is active\n", __func__);
 			sb->s_flags |= MS_RDONLY;
 			break;
 		case UFS_FSBAD:
-			printk("ufs_read_super: fs is bad\n");
+			pr_err("%s(): fs is bad\n", __func__);
 			sb->s_flags |= MS_RDONLY;
 			break;
 		default:
-			printk("ufs_read_super: can't grok fs_clean 0x%x\n", usb1->fs_clean);
+			pr_err("%s(): can't grok fs_clean 0x%x\n",
+			       __func__, usb1->fs_clean);
 			sb->s_flags |= MS_RDONLY;
 			break;
 		}
 	} else {
-		printk("ufs_read_super: fs needs fsck\n");
+		pr_err("%s(): fs needs fsck\n", __func__);
 		sb->s_flags |= MS_RDONLY;
 	}
 
@@ -1299,7 +1300,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 	if (!(new_mount_opt & UFS_MOUNT_UFSTYPE)) {
 		new_mount_opt |= ufstype;
 	} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
-		printk("ufstype can't be changed during remount\n");
+		pr_err("ufstype can't be changed during remount\n");
 		unlock_ufs(sb);
 		return -EINVAL;
 	}
@@ -1328,8 +1329,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 	 * fs was mounted as ro, remounting rw
 	 */
 #ifndef CONFIG_UFS_FS_WRITE
-		printk("ufs was compiled with read-only support, "
-		"can't be mounted as read-write\n");
+		pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n");
 		unlock_ufs(sb);
 		return -EINVAL;
 #else
@@ -1338,12 +1338,12 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 		    ufstype != UFS_MOUNT_UFSTYPE_44BSD &&
 		    ufstype != UFS_MOUNT_UFSTYPE_SUNx86 &&
 		    ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
-			printk("this ufstype is read-only supported\n");
+			pr_err("this ufstype is read-only supported\n");
 			unlock_ufs(sb);
 			return -EINVAL;
 		}
 		if (!ufs_read_cylinder_structures(sb)) {
-			printk("failed during remounting\n");
+			pr_err("failed during remounting\n");
 			unlock_ufs(sb);
 			return -EPERM;
 		}
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index 343e6fc571e5..2a07396d5f9e 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -1,6 +1,12 @@
 #ifndef _UFS_UFS_H
 #define _UFS_UFS_H 1
 
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #define UFS_MAX_GROUP_LOADED 8
 #define UFS_CGNO_EMPTY ((unsigned)-1)
 
@@ -71,9 +77,9 @@ struct ufs_inode_info {
  */
 #ifdef CONFIG_UFS_DEBUG
 #	define UFSD(f, a...)	{					\
-		printk ("UFSD (%s, %d): %s:",				\
+		pr_debug("UFSD (%s, %d): %s:",				\
 			__FILE__, __LINE__, __func__);		\
-		printk (f, ## a);					\
+		pr_debug(f, ## a);					\
 	}
 #else
 #	define UFSD(f, a...)	/**/
author	Stephen Rothwell <sfr@canb.auug.org.au>	2014-07-30 20:08:38 +1000
committer	Stephen Rothwell <sfr@canb.auug.org.au>	2014-07-30 20:08:38 +1000
commit	d653b0b3717843efa3e72bdcaf37b2a0b598eea0 (patch)
tree	c95b2471229d71fb0ced2f37723b7223e9987474 /fs
parent	3f607a5176e202974afb3dbb31d0f37cb2f4551f (diff)
parent	76e1488440013a0d737fbb9d1f8efe226138f7f0 (diff)