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authorLinus Torvalds <torvalds@g5.osdl.org>2005-07-12 20:21:28 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-12 20:21:28 -0700
commitbd4c625c061c2a38568d0add3478f59172455159 (patch)
tree1c44a17c55bce2ee7ad5ea3d15a208ecc0955f74 /fs/reiserfs/xattr.c
parent7fa94c8868edfef8cb6a201fcc9a5078b7b961da (diff)
reiserfs: run scripts/Lindent on reiserfs code
This was a pure indentation change, using: scripts/Lindent fs/reiserfs/*.c include/linux/reiserfs_*.h to make reiserfs match the regular Linux indentation style. As Jeff Mahoney <jeffm@suse.com> writes: The ReiserFS code is a mix of a number of different coding styles, sometimes different even from line-to-line. Since the code has been relatively stable for quite some time and there are few outstanding patches to be applied, it is time to reformat the code to conform to the Linux style standard outlined in Documentation/CodingStyle. This patch contains the result of running scripts/Lindent against fs/reiserfs/*.c and include/linux/reiserfs_*.h. There are places where the code can be made to look better, but I'd rather keep those patches separate so that there isn't a subtle by-hand hand accident in the middle of a huge patch. To be clear: This patch is reformatting *only*. A number of patches may follow that continue to make the code more consistent with the Linux coding style. Hans wasn't particularly enthusiastic about these patches, but said he wouldn't really oppose them either. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/reiserfs/xattr.c')
-rw-r--r--fs/reiserfs/xattr.c2173
1 files changed, 1087 insertions, 1086 deletions
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 45582fe8b466..e386d3db3051 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -51,67 +51,68 @@
#define PRIVROOT_NAME ".reiserfs_priv"
#define XAROOT_NAME "xattrs"
-static struct reiserfs_xattr_handler *find_xattr_handler_prefix (const char *prefix);
+static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char
+ *prefix);
-static struct dentry *
-create_xa_root (struct super_block *sb)
+static struct dentry *create_xa_root(struct super_block *sb)
{
- struct dentry *privroot = dget (REISERFS_SB(sb)->priv_root);
- struct dentry *xaroot;
-
- /* This needs to be created at mount-time */
- if (!privroot)
- return ERR_PTR(-EOPNOTSUPP);
-
- xaroot = lookup_one_len (XAROOT_NAME, privroot, strlen (XAROOT_NAME));
- if (IS_ERR (xaroot)) {
- goto out;
- } else if (!xaroot->d_inode) {
- int err;
- down (&privroot->d_inode->i_sem);
- err = privroot->d_inode->i_op->mkdir (privroot->d_inode, xaroot, 0700);
- up (&privroot->d_inode->i_sem);
-
- if (err) {
- dput (xaroot);
- dput (privroot);
- return ERR_PTR (err);
- }
- REISERFS_SB(sb)->xattr_root = dget (xaroot);
- }
-
-out:
- dput (privroot);
- return xaroot;
+ struct dentry *privroot = dget(REISERFS_SB(sb)->priv_root);
+ struct dentry *xaroot;
+
+ /* This needs to be created at mount-time */
+ if (!privroot)
+ return ERR_PTR(-EOPNOTSUPP);
+
+ xaroot = lookup_one_len(XAROOT_NAME, privroot, strlen(XAROOT_NAME));
+ if (IS_ERR(xaroot)) {
+ goto out;
+ } else if (!xaroot->d_inode) {
+ int err;
+ down(&privroot->d_inode->i_sem);
+ err =
+ privroot->d_inode->i_op->mkdir(privroot->d_inode, xaroot,
+ 0700);
+ up(&privroot->d_inode->i_sem);
+
+ if (err) {
+ dput(xaroot);
+ dput(privroot);
+ return ERR_PTR(err);
+ }
+ REISERFS_SB(sb)->xattr_root = dget(xaroot);
+ }
+
+ out:
+ dput(privroot);
+ return xaroot;
}
/* This will return a dentry, or error, refering to the xa root directory.
* If the xa root doesn't exist yet, the dentry will be returned without
* an associated inode. This dentry can be used with ->mkdir to create
* the xa directory. */
-static struct dentry *
-__get_xa_root (struct super_block *s)
+static struct dentry *__get_xa_root(struct super_block *s)
{
- struct dentry *privroot = dget (REISERFS_SB(s)->priv_root);
- struct dentry *xaroot = NULL;
-
- if (IS_ERR (privroot) || !privroot)
- return privroot;
-
- xaroot = lookup_one_len (XAROOT_NAME, privroot, strlen (XAROOT_NAME));
- if (IS_ERR (xaroot)) {
- goto out;
- } else if (!xaroot->d_inode) {
- dput (xaroot);
- xaroot = NULL;
- goto out;
- }
-
- REISERFS_SB(s)->xattr_root = dget (xaroot);
-
-out:
- dput (privroot);
- return xaroot;
+ struct dentry *privroot = dget(REISERFS_SB(s)->priv_root);
+ struct dentry *xaroot = NULL;
+
+ if (IS_ERR(privroot) || !privroot)
+ return privroot;
+
+ xaroot = lookup_one_len(XAROOT_NAME, privroot, strlen(XAROOT_NAME));
+ if (IS_ERR(xaroot)) {
+ goto out;
+ } else if (!xaroot->d_inode) {
+ dput(xaroot);
+ xaroot = NULL;
+ goto out;
+ }
+
+ REISERFS_SB(s)->xattr_root = dget(xaroot);
+
+ out:
+ dput(privroot);
+ return xaroot;
}
/* Returns the dentry (or NULL) referring to the root of the extended
@@ -119,147 +120,145 @@ out:
* Otherwise, we attempt to retreive it from disk. It may also return
* a pointer-encoded error.
*/
-static inline struct dentry *
-get_xa_root (struct super_block *s)
+static inline struct dentry *get_xa_root(struct super_block *s)
{
- struct dentry *dentry = dget (REISERFS_SB(s)->xattr_root);
+ struct dentry *dentry = dget(REISERFS_SB(s)->xattr_root);
- if (!dentry)
- dentry = __get_xa_root (s);
+ if (!dentry)
+ dentry = __get_xa_root(s);
- return dentry;
+ return dentry;
}
/* Opens the directory corresponding to the inode's extended attribute store.
* If flags allow, the tree to the directory may be created. If creation is
* prohibited, -ENODATA is returned. */
-static struct dentry *
-open_xa_dir (const struct inode *inode, int flags)
+static struct dentry *open_xa_dir(const struct inode *inode, int flags)
{
- struct dentry *xaroot, *xadir;
- char namebuf[17];
-
- xaroot = get_xa_root (inode->i_sb);
- if (IS_ERR (xaroot)) {
- return xaroot;
- } else if (!xaroot) {
- if (flags == 0 || flags & XATTR_CREATE) {
- xaroot = create_xa_root (inode->i_sb);
- if (IS_ERR (xaroot))
- return xaroot;
- }
- if (!xaroot)
- return ERR_PTR (-ENODATA);
- }
-
- /* ok, we have xaroot open */
-
- snprintf (namebuf, sizeof (namebuf), "%X.%X",
- le32_to_cpu (INODE_PKEY (inode)->k_objectid),
- inode->i_generation);
- xadir = lookup_one_len (namebuf, xaroot, strlen (namebuf));
- if (IS_ERR (xadir)) {
- dput (xaroot);
- return xadir;
- }
-
- if (!xadir->d_inode) {
- int err;
- if (flags == 0 || flags & XATTR_CREATE) {
- /* Although there is nothing else trying to create this directory,
- * another directory with the same hash may be created, so we need
- * to protect against that */
- err = xaroot->d_inode->i_op->mkdir (xaroot->d_inode, xadir, 0700);
- if (err) {
- dput (xaroot);
- dput (xadir);
- return ERR_PTR (err);
- }
- }
- if (!xadir->d_inode) {
- dput (xaroot);
- dput (xadir);
- return ERR_PTR (-ENODATA);
- }
- }
-
- dput (xaroot);
- return xadir;
+ struct dentry *xaroot, *xadir;
+ char namebuf[17];
+
+ xaroot = get_xa_root(inode->i_sb);
+ if (IS_ERR(xaroot)) {
+ return xaroot;
+ } else if (!xaroot) {
+ if (flags == 0 || flags & XATTR_CREATE) {
+ xaroot = create_xa_root(inode->i_sb);
+ if (IS_ERR(xaroot))
+ return xaroot;
+ }
+ if (!xaroot)
+ return ERR_PTR(-ENODATA);
+ }
+
+ /* ok, we have xaroot open */
+
+ snprintf(namebuf, sizeof(namebuf), "%X.%X",
+ le32_to_cpu(INODE_PKEY(inode)->k_objectid),
+ inode->i_generation);
+ xadir = lookup_one_len(namebuf, xaroot, strlen(namebuf));
+ if (IS_ERR(xadir)) {
+ dput(xaroot);
+ return xadir;
+ }
+
+ if (!xadir->d_inode) {
+ int err;
+ if (flags == 0 || flags & XATTR_CREATE) {
+ /* Although there is nothing else trying to create this directory,
+ * another directory with the same hash may be created, so we need
+ * to protect against that */
+ err =
+ xaroot->d_inode->i_op->mkdir(xaroot->d_inode, xadir,
+ 0700);
+ if (err) {
+ dput(xaroot);
+ dput(xadir);
+ return ERR_PTR(err);
+ }
+ }
+ if (!xadir->d_inode) {
+ dput(xaroot);
+ dput(xadir);
+ return ERR_PTR(-ENODATA);
+ }
+ }
+
+ dput(xaroot);
+ return xadir;
}
/* Returns a dentry corresponding to a specific extended attribute file
* for the inode. If flags allow, the file is created. Otherwise, a
* valid or negative dentry, or an error is returned. */
-static struct dentry *
-get_xa_file_dentry (const struct inode *inode, const char *name, int flags)
+static struct dentry *get_xa_file_dentry(const struct inode *inode,
+ const char *name, int flags)
{
- struct dentry *xadir, *xafile;
- int err = 0;
-
- xadir = open_xa_dir (inode, flags);
- if (IS_ERR (xadir)) {
- return ERR_PTR (PTR_ERR (xadir));
- } else if (xadir && !xadir->d_inode) {
- dput (xadir);
- return ERR_PTR (-ENODATA);
- }
-
- xafile = lookup_one_len (name, xadir, strlen (name));
- if (IS_ERR (xafile)) {
- dput (xadir);
- return ERR_PTR (PTR_ERR (xafile));
- }
-
- if (xafile->d_inode) { /* file exists */
- if (flags & XATTR_CREATE) {
- err = -EEXIST;
- dput (xafile);
- goto out;
- }
- } else if (flags & XATTR_REPLACE || flags & FL_READONLY) {
- goto out;
- } else {
- /* inode->i_sem is down, so nothing else can try to create
- * the same xattr */
- err = xadir->d_inode->i_op->create (xadir->d_inode, xafile,
- 0700|S_IFREG, NULL);
-
- if (err) {
- dput (xafile);
- goto out;
- }
- }
-
-out:
- dput (xadir);
- if (err)
- xafile = ERR_PTR (err);
- return xafile;
-}
+ struct dentry *xadir, *xafile;
+ int err = 0;
+
+ xadir = open_xa_dir(inode, flags);
+ if (IS_ERR(xadir)) {
+ return ERR_PTR(PTR_ERR(xadir));
+ } else if (xadir && !xadir->d_inode) {
+ dput(xadir);
+ return ERR_PTR(-ENODATA);
+ }
+
+ xafile = lookup_one_len(name, xadir, strlen(name));
+ if (IS_ERR(xafile)) {
+ dput(xadir);
+ return ERR_PTR(PTR_ERR(xafile));
+ }
+
+ if (xafile->d_inode) { /* file exists */
+ if (flags & XATTR_CREATE) {
+ err = -EEXIST;
+ dput(xafile);
+ goto out;
+ }
+ } else if (flags & XATTR_REPLACE || flags & FL_READONLY) {
+ goto out;
+ } else {
+ /* inode->i_sem is down, so nothing else can try to create
+ * the same xattr */
+ err = xadir->d_inode->i_op->create(xadir->d_inode, xafile,
+ 0700 | S_IFREG, NULL);
+
+ if (err) {
+ dput(xafile);
+ goto out;
+ }
+ }
+ out:
+ dput(xadir);
+ if (err)
+ xafile = ERR_PTR(err);
+ return xafile;
+}
/* Opens a file pointer to the attribute associated with inode */
-static struct file *
-open_xa_file (const struct inode *inode, const char *name, int flags)
+static struct file *open_xa_file(const struct inode *inode, const char *name,
+ int flags)
{
- struct dentry *xafile;
- struct file *fp;
-
- xafile = get_xa_file_dentry (inode, name, flags);
- if (IS_ERR (xafile))
- return ERR_PTR (PTR_ERR (xafile));
- else if (!xafile->d_inode) {
- dput (xafile);
- return ERR_PTR (-ENODATA);
- }
+ struct dentry *xafile;
+ struct file *fp;
+
+ xafile = get_xa_file_dentry(inode, name, flags);
+ if (IS_ERR(xafile))
+ return ERR_PTR(PTR_ERR(xafile));
+ else if (!xafile->d_inode) {
+ dput(xafile);
+ return ERR_PTR(-ENODATA);
+ }
- fp = dentry_open (xafile, NULL, O_RDWR);
- /* dentry_open dputs the dentry if it fails */
+ fp = dentry_open(xafile, NULL, O_RDWR);
+ /* dentry_open dputs the dentry if it fails */
- return fp;
+ return fp;
}
-
/*
* this is very similar to fs/reiserfs/dir.c:reiserfs_readdir, but
* we need to drop the path before calling the filldir struct. That
@@ -273,139 +272,146 @@ open_xa_file (const struct inode *inode, const char *name, int flags)
* we're called with i_sem held, so there are no worries about the directory
* changing underneath us.
*/
-static int __xattr_readdir(struct file * filp, void * dirent, filldir_t filldir)
+static int __xattr_readdir(struct file *filp, void *dirent, filldir_t filldir)
{
- struct inode *inode = filp->f_dentry->d_inode;
- struct cpu_key pos_key; /* key of current position in the directory (key of directory entry) */
- INITIALIZE_PATH (path_to_entry);
- struct buffer_head * bh;
- int entry_num;
- struct item_head * ih, tmp_ih;
- int search_res;
- char * local_buf;
- loff_t next_pos;
- char small_buf[32] ; /* avoid kmalloc if we can */
- struct reiserfs_de_head *deh;
- int d_reclen;
- char * d_name;
- off_t d_off;
- ino_t d_ino;
- struct reiserfs_dir_entry de;
-
-
- /* form key for search the next directory entry using f_pos field of
- file structure */
- next_pos = max_reiserfs_offset(inode);
-
- while (1) {
-research:
- if (next_pos <= DOT_DOT_OFFSET)
- break;
- make_cpu_key (&pos_key, inode, next_pos, TYPE_DIRENTRY, 3);
-
- search_res = search_by_entry_key(inode->i_sb, &pos_key, &path_to_entry, &de);
- if (search_res == IO_ERROR) {
- // FIXME: we could just skip part of directory which could
- // not be read
- pathrelse(&path_to_entry);
- return -EIO;
- }
-
- if (search_res == NAME_NOT_FOUND)
- de.de_entry_num--;
+ struct inode *inode = filp->f_dentry->d_inode;
+ struct cpu_key pos_key; /* key of current position in the directory (key of directory entry) */
+ INITIALIZE_PATH(path_to_entry);
+ struct buffer_head *bh;
+ int entry_num;
+ struct item_head *ih, tmp_ih;
+ int search_res;
+ char *local_buf;
+ loff_t next_pos;
+ char small_buf[32]; /* avoid kmalloc if we can */
+ struct reiserfs_de_head *deh;
+ int d_reclen;
+ char *d_name;
+ off_t d_off;
+ ino_t d_ino;
+ struct reiserfs_dir_entry de;
+
+ /* form key for search the next directory entry using f_pos field of
+ file structure */
+ next_pos = max_reiserfs_offset(inode);
+
+ while (1) {
+ research:
+ if (next_pos <= DOT_DOT_OFFSET)
+ break;
+ make_cpu_key(&pos_key, inode, next_pos, TYPE_DIRENTRY, 3);
+
+ search_res =
+ search_by_entry_key(inode->i_sb, &pos_key, &path_to_entry,
+ &de);
+ if (search_res == IO_ERROR) {
+ // FIXME: we could just skip part of directory which could
+ // not be read
+ pathrelse(&path_to_entry);
+ return -EIO;
+ }
- set_de_name_and_namelen(&de);
- entry_num = de.de_entry_num;
- deh = &(de.de_deh[entry_num]);
+ if (search_res == NAME_NOT_FOUND)
+ de.de_entry_num--;
- bh = de.de_bh;
- ih = de.de_ih;
+ set_de_name_and_namelen(&de);
+ entry_num = de.de_entry_num;
+ deh = &(de.de_deh[entry_num]);
- if (!is_direntry_le_ih(ih)) {
- reiserfs_warning(inode->i_sb, "not direntry %h", ih);
- break;
- }
- copy_item_head(&tmp_ih, ih);
+ bh = de.de_bh;
+ ih = de.de_ih;
- /* we must have found item, that is item of this directory, */
- RFALSE( COMP_SHORT_KEYS (&(ih->ih_key), &pos_key),
- "vs-9000: found item %h does not match to dir we readdir %K",
- ih, &pos_key);
+ if (!is_direntry_le_ih(ih)) {
+ reiserfs_warning(inode->i_sb, "not direntry %h", ih);
+ break;
+ }
+ copy_item_head(&tmp_ih, ih);
- if (deh_offset(deh) <= DOT_DOT_OFFSET) {
- break;
- }
+ /* we must have found item, that is item of this directory, */
+ RFALSE(COMP_SHORT_KEYS(&(ih->ih_key), &pos_key),
+ "vs-9000: found item %h does not match to dir we readdir %K",
+ ih, &pos_key);
- /* look for the previous entry in the directory */
- next_pos = deh_offset (deh) - 1;
+ if (deh_offset(deh) <= DOT_DOT_OFFSET) {
+ break;
+ }
- if (!de_visible (deh))
- /* it is hidden entry */
- continue;
+ /* look for the previous entry in the directory */
+ next_pos = deh_offset(deh) - 1;
- d_reclen = entry_length(bh, ih, entry_num);
- d_name = B_I_DEH_ENTRY_FILE_NAME (bh, ih, deh);
- d_off = deh_offset (deh);
- d_ino = deh_objectid (deh);
+ if (!de_visible(deh))
+ /* it is hidden entry */
+ continue;
- if (!d_name[d_reclen - 1])
- d_reclen = strlen (d_name);
+ d_reclen = entry_length(bh, ih, entry_num);
+ d_name = B_I_DEH_ENTRY_FILE_NAME(bh, ih, deh);
+ d_off = deh_offset(deh);
+ d_ino = deh_objectid(deh);
- if (d_reclen > REISERFS_MAX_NAME(inode->i_sb->s_blocksize)){
- /* too big to send back to VFS */
- continue ;
- }
+ if (!d_name[d_reclen - 1])
+ d_reclen = strlen(d_name);
- /* Ignore the .reiserfs_priv entry */
- if (reiserfs_xattrs (inode->i_sb) &&
- !old_format_only(inode->i_sb) &&
- deh_objectid (deh) == le32_to_cpu (INODE_PKEY(REISERFS_SB(inode->i_sb)->priv_root->d_inode)->k_objectid))
- continue;
+ if (d_reclen > REISERFS_MAX_NAME(inode->i_sb->s_blocksize)) {
+ /* too big to send back to VFS */
+ continue;
+ }
- if (d_reclen <= 32) {
- local_buf = small_buf ;
- } else {
- local_buf = reiserfs_kmalloc(d_reclen, GFP_NOFS, inode->i_sb) ;
- if (!local_buf) {
- pathrelse (&path_to_entry);
- return -ENOMEM ;
- }
- if (item_moved (&tmp_ih, &path_to_entry)) {
- reiserfs_kfree(local_buf, d_reclen, inode->i_sb) ;
-
- /* sigh, must retry. Do this same offset again */
- next_pos = d_off;
- goto research;
- }
- }
+ /* Ignore the .reiserfs_priv entry */
+ if (reiserfs_xattrs(inode->i_sb) &&
+ !old_format_only(inode->i_sb) &&
+ deh_objectid(deh) ==
+ le32_to_cpu(INODE_PKEY
+ (REISERFS_SB(inode->i_sb)->priv_root->d_inode)->
+ k_objectid))
+ continue;
+
+ if (d_reclen <= 32) {
+ local_buf = small_buf;
+ } else {
+ local_buf =
+ reiserfs_kmalloc(d_reclen, GFP_NOFS, inode->i_sb);
+ if (!local_buf) {
+ pathrelse(&path_to_entry);
+ return -ENOMEM;
+ }
+ if (item_moved(&tmp_ih, &path_to_entry)) {
+ reiserfs_kfree(local_buf, d_reclen,
+ inode->i_sb);
+
+ /* sigh, must retry. Do this same offset again */
+ next_pos = d_off;
+ goto research;
+ }
+ }
- // Note, that we copy name to user space via temporary
- // buffer (local_buf) because filldir will block if
- // user space buffer is swapped out. At that time
- // entry can move to somewhere else
- memcpy (local_buf, d_name, d_reclen);
+ // Note, that we copy name to user space via temporary
+ // buffer (local_buf) because filldir will block if
+ // user space buffer is swapped out. At that time
+ // entry can move to somewhere else
+ memcpy(local_buf, d_name, d_reclen);
- /* the filldir function might need to start transactions,
- * or do who knows what. Release the path now that we've
- * copied all the important stuff out of the deh
- */
- pathrelse (&path_to_entry);
-
- if (filldir (dirent, local_buf, d_reclen, d_off, d_ino,
- DT_UNKNOWN) < 0) {
- if (local_buf != small_buf) {
- reiserfs_kfree(local_buf, d_reclen, inode->i_sb) ;
- }
- goto end;
- }
- if (local_buf != small_buf) {
- reiserfs_kfree(local_buf, d_reclen, inode->i_sb) ;
- }
- } /* while */
+ /* the filldir function might need to start transactions,
+ * or do who knows what. Release the path now that we've
+ * copied all the important stuff out of the deh
+ */
+ pathrelse(&path_to_entry);
+
+ if (filldir(dirent, local_buf, d_reclen, d_off, d_ino,
+ DT_UNKNOWN) < 0) {
+ if (local_buf != small_buf) {
+ reiserfs_kfree(local_buf, d_reclen,
+ inode->i_sb);
+ }
+ goto end;
+ }
+ if (local_buf != small_buf) {
+ reiserfs_kfree(local_buf, d_reclen, inode->i_sb);
+ }
+ } /* while */
-end:
- pathrelse (&path_to_entry);
- return 0;
+ end:
+ pathrelse(&path_to_entry);
+ return 0;
}
/*
@@ -417,63 +423,59 @@ end:
static
int xattr_readdir(struct file *file, filldir_t filler, void *buf)
{
- struct inode *inode = file->f_dentry->d_inode;
- int res = -ENOTDIR;
- if (!file->f_op || !file->f_op->readdir)
- goto out;
- down(&inode->i_sem);
+ struct inode *inode = file->f_dentry->d_inode;
+ int res = -ENOTDIR;
+ if (!file->f_op || !file->f_op->readdir)
+ goto out;
+ down(&inode->i_sem);
// down(&inode->i_zombie);
- res = -ENOENT;
- if (!IS_DEADDIR(inode)) {
- lock_kernel();
- res = __xattr_readdir(file, buf, filler);
- unlock_kernel();
- }
+ res = -ENOENT;
+ if (!IS_DEADDIR(inode)) {
+ lock_kernel();
+ res = __xattr_readdir(file, buf, filler);
+ unlock_kernel();
+ }
// up(&inode->i_zombie);
- up(&inode->i_sem);
-out:
- return res;
+ up(&inode->i_sem);
+ out:
+ return res;
}
-
/* Internal operations on file data */
-static inline void
-reiserfs_put_page(struct page *page)
+static inline void reiserfs_put_page(struct page *page)
{
- kunmap(page);
- page_cache_release(page);
+ kunmap(page);
+ page_cache_release(page);
}
-static struct page *
-reiserfs_get_page(struct inode *dir, unsigned long n)
+static struct page *reiserfs_get_page(struct inode *dir, unsigned long n)
{
- struct address_space *mapping = dir->i_mapping;
- struct page *page;
- /* We can deadlock if we try to free dentries,
- and an unlink/rmdir has just occured - GFP_NOFS avoids this */
- mapping->flags = (mapping->flags & ~__GFP_BITS_MASK) | GFP_NOFS;
- page = read_cache_page (mapping, n,
- (filler_t*)mapping->a_ops->readpage, NULL);
- if (!IS_ERR(page)) {
- wait_on_page_locked(page);
- kmap(page);
- if (!PageUptodate(page))
- goto fail;
-
- if (PageError(page))
- goto fail;
- }
- return page;
-
-fail:
- reiserfs_put_page(page);
- return ERR_PTR(-EIO);
+ struct address_space *mapping = dir->i_mapping;
+ struct page *page;
+ /* We can deadlock if we try to free dentries,
+ and an unlink/rmdir has just occured - GFP_NOFS avoids this */
+ mapping->flags = (mapping->flags & ~__GFP_BITS_MASK) | GFP_NOFS;
+ page = read_cache_page(mapping, n,
+ (filler_t *) mapping->a_ops->readpage, NULL);
+ if (!IS_ERR(page)) {
+ wait_on_page_locked(page);
+ kmap(page);
+ if (!PageUptodate(page))
+ goto fail;
+
+ if (PageError(page))
+ goto fail;
+ }
+ return page;
+
+ fail:
+ reiserfs_put_page(page);
+ return ERR_PTR(-EIO);
}
-static inline __u32
-xattr_hash (const char *msg, int len)
+static inline __u32 xattr_hash(const char *msg, int len)
{
- return csum_partial (msg, len, 0);
+ return csum_partial(msg, len, 0);
}
/* Generic extended attribute operations that can be used by xa plugins */
@@ -482,294 +484,300 @@ xattr_hash (const char *msg, int len)
* inode->i_sem: down
*/
int
-reiserfs_xattr_set (struct inode *inode, const char *name, const void *buffer,
- size_t buffer_size, int flags)
+reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
+ size_t buffer_size, int flags)
{
- int err = 0;
- struct file *fp;
- struct page *page;
- char *data;
- struct address_space *mapping;
- size_t file_pos = 0;
- size_t buffer_pos = 0;
- struct inode *xinode;
- struct iattr newattrs;
- __u32 xahash = 0;
-
- if (IS_RDONLY (inode))
- return -EROFS;
-
- if (IS_IMMUTABLE (inode) || IS_APPEND (inode))
- return -EPERM;
-
- if (get_inode_sd_version (inode) == STAT_DATA_V1)
- return -EOPNOTSUPP;
-
- /* Empty xattrs are ok, they're just empty files, no hash */
- if (buffer && buffer_size)
- xahash = xattr_hash (buffer, buffer_size);
-
-open_file:
- fp = open_xa_file (inode, name, flags);
- if (IS_ERR (fp)) {
- err = PTR_ERR (fp);
- goto out;
- }
-
- xinode = fp->f_dentry->d_inode;
- REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
-
- /* we need to copy it off.. */
- if (xinode->i_nlink > 1) {
- fput(fp);
- err = reiserfs_xattr_del (inode, name);
- if (err < 0)
- goto out;
- /* We just killed the old one, we're not replacing anymore */
- if (flags & XATTR_REPLACE)
- flags &= ~XATTR_REPLACE;
- goto open_file;
- }
-
- /* Resize it so we're ok to write there */
- newattrs.ia_size = buffer_size;
- newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
- down (&xinode->i_sem);
- err = notify_change(fp->f_dentry, &newattrs);
- if (err)
- goto out_filp;
-
- mapping = xinode->i_mapping;
- while (buffer_pos < buffer_size || buffer_pos == 0) {
- 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
- chunk = buffer_size - buffer_pos;
-
- page = reiserfs_get_page (xinode, file_pos >> PAGE_CACHE_SHIFT);
- if (IS_ERR (page)) {
- err = PTR_ERR (page);
- goto out_filp;
- }
-
- lock_page (page);
- data = page_address (page);
-
- 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;
- rxh = (struct reiserfs_xattr_header *)data;
- rxh->h_magic = cpu_to_le32 (REISERFS_XATTR_MAGIC);
- rxh->h_hash = cpu_to_le32 (xahash);
- }
-
- err = mapping->a_ops->prepare_write (fp, page, page_offset,
- page_offset + chunk + skip);
- if (!err) {
- if (buffer)
- memcpy (data + skip, buffer + buffer_pos, chunk);
- err = mapping->a_ops->commit_write (fp, page, page_offset,
- page_offset + chunk + skip);
+ int err = 0;
+ struct file *fp;
+ struct page *page;
+ char *data;
+ struct address_space *mapping;
+ size_t file_pos = 0;
+ size_t buffer_pos = 0;
+ struct inode *xinode;
+ struct iattr newattrs;
+ __u32 xahash = 0;
+
+ if (IS_RDONLY(inode))
+ return -EROFS;
+
+ if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+ return -EPERM;
+
+ if (get_inode_sd_version(inode) == STAT_DATA_V1)
+ return -EOPNOTSUPP;
+
+ /* Empty xattrs are ok, they're just empty files, no hash */
+ if (buffer && buffer_size)
+ xahash = xattr_hash(buffer, buffer_size);
+
+ open_file:
+ fp = open_xa_file(inode, name, flags);
+ if (IS_ERR(fp)) {
+ err = PTR_ERR(fp);
+ goto out;
+ }
+
+ xinode = fp->f_dentry->d_inode;
+ REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
+
+ /* we need to copy it off.. */
+ if (xinode->i_nlink > 1) {
+ fput(fp);
+ err = reiserfs_xattr_del(inode, name);
+ if (err < 0)
+ goto out;
+ /* We just killed the old one, we're not replacing anymore */
+ if (flags & XATTR_REPLACE)
+ flags &= ~XATTR_REPLACE;
+ goto open_file;
+ }
+
+ /* Resize it so we're ok to write there */
+ newattrs.ia_size = buffer_size;
+ newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
+ down(&xinode->i_sem);
+ err = notify_change(fp->f_dentry, &newattrs);
+ if (err)
+ goto out_filp;
+
+ mapping = xinode->i_mapping;
+ while (buffer_pos < buffer_size || buffer_pos == 0) {
+ 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
+ chunk = buffer_size - buffer_pos;
+
+ page = reiserfs_get_page(xinode, file_pos >> PAGE_CACHE_SHIFT);
+ if (IS_ERR(page)) {
+ err = PTR_ERR(page);
+ goto out_filp;
+ }
+
+ lock_page(page);
+ data = page_address(page);
+
+ 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;
+ rxh = (struct reiserfs_xattr_header *)data;
+ rxh->h_magic = cpu_to_le32(REISERFS_XATTR_MAGIC);
+ rxh->h_hash = cpu_to_le32(xahash);
+ }
+
+ err = mapping->a_ops->prepare_write(fp, page, page_offset,
+ page_offset + chunk + skip);
+ if (!err) {
+ if (buffer)
+ memcpy(data + skip, buffer + buffer_pos, chunk);
+ err =
+ mapping->a_ops->commit_write(fp, page, page_offset,
+ page_offset + chunk +
+ skip);
+ }
+ unlock_page(page);
+ reiserfs_put_page(page);
+ buffer_pos += chunk;
+ file_pos += chunk;
+ skip = 0;
+ if (err || buffer_size == 0 || !buffer)
+ break;
+ }
+
+ /* We can't mark the inode dirty if it's not hashed. This is the case
+ * when we're inheriting the default ACL. If we dirty it, the inode
+ * gets marked dirty, but won't (ever) make it onto the dirty list until
+ * it's synced explicitly to clear I_DIRTY. This is bad. */
+ if (!hlist_unhashed(&inode->i_hash)) {
+ inode->i_ctime = CURRENT_TIME_SEC;
+ mark_inode_dirty(inode);
}
- unlock_page (page);
- reiserfs_put_page (page);
- buffer_pos += chunk;
- file_pos += chunk;
- skip = 0;
- if (err || buffer_size == 0 || !buffer)
- break;
- }
-
- /* We can't mark the inode dirty if it's not hashed. This is the case
- * when we're inheriting the default ACL. If we dirty it, the inode
- * gets marked dirty, but won't (ever) make it onto the dirty list until
- * it's synced explicitly to clear I_DIRTY. This is bad. */
- if (!hlist_unhashed(&inode->i_hash)) {
- inode->i_ctime = CURRENT_TIME_SEC;
- mark_inode_dirty (inode);
- }
-
-out_filp:
- up (&xinode->i_sem);
- fput(fp);
-
-out:
- return err;
+
+ out_filp:
+ up(&xinode->i_sem);
+ fput(fp);
+
+ out:
+ return err;
}
/*
* inode->i_sem: down
*/
int
-reiserfs_xattr_get (const struct inode *inode, const char *name, void *buffer,
- size_t buffer_size)
+reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
+ size_t buffer_size)
{
- ssize_t err = 0;
- struct file *fp;
- size_t isize;
- size_t file_pos = 0;
- size_t buffer_pos = 0;
- struct page *page;
- struct inode *xinode;
- __u32 hash = 0;
-
- if (name == NULL)
- return -EINVAL;
-
- /* We can't have xattrs attached to v1 items since they don't have
- * generation numbers */
- if (get_inode_sd_version (inode) == STAT_DATA_V1)
- return -EOPNOTSUPP;
-
- fp = open_xa_file (inode, name, FL_READONLY);
- if (IS_ERR (fp)) {
- err = PTR_ERR (fp);
- goto out;
- }
-
- xinode = fp->f_dentry->d_inode;
- isize = xinode->i_size;
- REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
-
- /* Just return the size needed */
- if (buffer == NULL) {
- err = isize - sizeof (struct reiserfs_xattr_header);
- goto out_dput;
- }
-
- if (buffer_size < isize - sizeof (struct reiserfs_xattr_header)) {
- err = -ERANGE;
- goto out_dput;
- }
-
- while (file_pos < isize) {
- size_t chunk;
- char *data;
- size_t skip = 0;
- if (isize - file_pos > PAGE_CACHE_SIZE)
- chunk = PAGE_CACHE_SIZE;
- else
- chunk = isize - file_pos;
-
- page = reiserfs_get_page (xinode, file_pos >> PAGE_CACHE_SHIFT);
- if (IS_ERR (page)) {
- err = PTR_ERR (page);
- goto out_dput;
- }
-
- lock_page (page);
- data = page_address (page);
- if (file_pos == 0) {
- struct reiserfs_xattr_header *rxh =
- (struct reiserfs_xattr_header *)data;
- skip = file_pos = sizeof (struct reiserfs_xattr_header);
- chunk -= skip;
- /* Magic doesn't match up.. */
- if (rxh->h_magic != cpu_to_le32 (REISERFS_XATTR_MAGIC)) {
- unlock_page (page);
- reiserfs_put_page (page);
- reiserfs_warning (inode->i_sb, "Invalid magic for xattr (%s) "
- "associated with %k", name,
- INODE_PKEY (inode));
- err = -EIO;
- goto out_dput;
- }
- hash = le32_to_cpu (rxh->h_hash);
- }
- memcpy (buffer + buffer_pos, data + skip, chunk);
- unlock_page (page);
- reiserfs_put_page (page);
- file_pos += chunk;
- buffer_pos += chunk;
- skip = 0;
- }
- err = isize - sizeof (struct reiserfs_xattr_header);
-
- if (xattr_hash (buffer, isize - sizeof (struct reiserfs_xattr_header)) != hash) {
- reiserfs_warning (inode->i_sb, "Invalid hash for xattr (%s) associated "
- "with %k", name, INODE_PKEY (inode));
- err = -EIO;
- }
-
-out_dput:
- fput(fp);
-
-out:
- return err;
+ ssize_t err = 0;
+ struct file *fp;
+ size_t isize;
+ size_t file_pos = 0;
+ size_t buffer_pos = 0;
+ struct page *page;
+ struct inode *xinode;
+ __u32 hash = 0;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ /* We can't have xattrs attached to v1 items since they don't have
+ * generation numbers */
+ if (get_inode_sd_version(inode) == STAT_DATA_V1)
+ return -EOPNOTSUPP;
+
+ fp = open_xa_file(inode, name, FL_READONLY);
+ if (IS_ERR(fp)) {
+ err = PTR_ERR(fp);
+ goto out;
+ }
+
+ xinode = fp->f_dentry->d_inode;
+ isize = xinode->i_size;
+ REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
+
+ /* Just return the size needed */
+ if (buffer == NULL) {
+ err = isize - sizeof(struct reiserfs_xattr_header);
+ goto out_dput;
+ }
+
+ if (buffer_size < isize - sizeof(struct reiserfs_xattr_header)) {
+ err = -ERANGE;
+ goto out_dput;
+ }
+
+ while (file_pos < isize) {
+ size_t chunk;
+ char *data;
+ size_t skip = 0;
+ if (isize - file_pos > PAGE_CACHE_SIZE)
+ chunk = PAGE_CACHE_SIZE;
+ else
+ chunk = isize - file_pos;
+
+ page = reiserfs_get_page(xinode, file_pos >> PAGE_CACHE_SHIFT);
+ if (IS_ERR(page)) {
+ err = PTR_ERR(page);
+ goto out_dput;
+ }
+
+ lock_page(page);
+ data = page_address(page);
+ if (file_pos == 0) {
+ struct reiserfs_xattr_header *rxh =
+ (struct reiserfs_xattr_header *)data;
+ skip = file_pos = sizeof(struct reiserfs_xattr_header);
+ chunk -= skip;
+ /* Magic doesn't match up.. */
+ if (rxh->h_magic != cpu_to_le32(REISERFS_XATTR_MAGIC)) {
+ unlock_page(page);
+ reiserfs_put_page(page);
+ reiserfs_warning(inode->i_sb,
+ "Invalid magic for xattr (%s) "
+ "associated with %k", name,
+ INODE_PKEY(inode));
+ err = -EIO;
+ goto out_dput;
+ }
+ hash = le32_to_cpu(rxh->h_hash);
+ }
+ memcpy(buffer + buffer_pos, data + skip, chunk);
+ unlock_page(page);
+ reiserfs_put_page(page);
+ file_pos += chunk;
+ buffer_pos += chunk;
+ skip = 0;
+ }
+ err = isize - sizeof(struct reiserfs_xattr_header);
+
+ if (xattr_hash(buffer, isize - sizeof(struct reiserfs_xattr_header)) !=
+ hash) {
+ reiserfs_warning(inode->i_sb,
+ "Invalid hash for xattr (%s) associated "
+ "with %k", name, INODE_PKEY(inode));
+ err = -EIO;
+ }
+
+ out_dput:
+ fput(fp);
+
+ out:
+ return err;
}
static int
-__reiserfs_xattr_del (struct dentry *xadir, const char *name, int namelen)
+__reiserfs_xattr_del(struct dentry *xadir, const char *name, int namelen)
{
- struct dentry *dentry;
- struct inode *dir = xadir->d_inode;
- int err = 0;
-
- dentry = lookup_one_len (name, xadir, namelen);
- if (IS_ERR (dentry)) {
- err = PTR_ERR (dentry);
- goto out;
- } else if (!dentry->d_inode) {
- err = -ENODATA;
- goto out_file;
- }
-
- /* Skip directories.. */
- if (S_ISDIR (dentry->d_inode->i_mode))
- goto out_file;
-
- if (!is_reiserfs_priv_object (dentry->d_inode)) {
- reiserfs_warning (dir->i_sb, "OID %08x [%.*s/%.*s] doesn't have "
- "priv flag set [parent is %sset].",
- le32_to_cpu (INODE_PKEY (dentry->d_inode)->k_objectid),
- xadir->d_name.len, xadir->d_name.name, namelen, name,
- is_reiserfs_priv_object (xadir->d_inode) ? "" : "not ");
- dput (dentry);
- return -EIO;
- }
-
- err = dir->i_op->unlink (dir, dentry);
- if (!err)
- d_delete (dentry);
-
-out_file:
- dput (dentry);
-
-out:
- return err;
-}
+ struct dentry *dentry;
+ struct inode *dir = xadir->d_inode;
+ int err = 0;
+
+ dentry = lookup_one_len(name, xadir, namelen);
+ if (IS_ERR(dentry)) {
+ err = PTR_ERR(dentry);
+ goto out;
+ } else if (!dentry->d_inode) {
+ err = -ENODATA;
+ goto out_file;
+ }
+
+ /* Skip directories.. */
+ if (S_ISDIR(dentry->d_inode->i_mode))
+ goto out_file;
+
+ if (!is_reiserfs_priv_object(dentry->d_inode)) {
+ reiserfs_warning(dir->i_sb, "OID %08x [%.*s/%.*s] doesn't have "
+ "priv flag set [parent is %sset].",
+ le32_to_cpu(INODE_PKEY(dentry->d_inode)->
+ k_objectid), xadir->d_name.len,
+ xadir->d_name.name, namelen, name,
+ is_reiserfs_priv_object(xadir->
+ d_inode) ? "" :
+ "not ");
+ dput(dentry);
+ return -EIO;
+ }
+ err = dir->i_op->unlink(dir, dentry);
+ if (!err)
+ d_delete(dentry);
-int
-reiserfs_xattr_del (struct inode *inode, const char *name)
+ out_file:
+ dput(dentry);
+
+ out:
+ return err;
+}
+
+int reiserfs_xattr_del(struct inode *inode, const char *name)
{
- struct dentry *dir;
- int err;
+ struct dentry *dir;
+ int err;
- if (IS_RDONLY (inode))
- return -EROFS;
+ if (IS_RDONLY(inode))
+ return -EROFS;
- dir = open_xa_dir (inode, FL_READONLY);
- if (IS_ERR (dir)) {
- err = PTR_ERR (dir);
- goto out;
- }
+ dir = open_xa_dir(inode, FL_READONLY);
+ if (IS_ERR(dir)) {
+ err = PTR_ERR(dir);
+ goto out;
+ }
- err = __reiserfs_xattr_del (dir, name, strlen (name));
- dput (dir);
+ err = __reiserfs_xattr_del(dir, name, strlen(name));
+ dput(dir);
- if (!err) {
- inode->i_ctime = CURRENT_TIME_SEC;
- mark_inode_dirty (inode);
- }
+ if (!err) {
+ inode->i_ctime = CURRENT_TIME_SEC;
+ mark_inode_dirty(inode);
+ }
-out:
- return err;
+ out:
+ return err;
}
/* The following are side effects of other operations that aren't explicitly
@@ -777,167 +785,163 @@ out:
* or ownership changes, object deletions, etc. */
static int
-reiserfs_delete_xattrs_filler (void *buf, const char *name, int namelen,
- loff_t offset, ino_t ino, unsigned int d_type)
+reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
+ loff_t offset, ino_t ino, unsigned int d_type)
{
- struct dentry *xadir = (struct dentry *)buf;
+ struct dentry *xadir = (struct dentry *)buf;
- return __reiserfs_xattr_del (xadir, name, namelen);
+ return __reiserfs_xattr_del(xadir, name, namelen);
}
/* This is called w/ inode->i_sem downed */
-int
-reiserfs_delete_xattrs (struct inode *inode)
+int reiserfs_delete_xattrs(struct inode *inode)
{
- struct file *fp;
- struct dentry *dir, *root;
- int err = 0;
-
- /* Skip out, an xattr has no xattrs associated with it */
- if (is_reiserfs_priv_object (inode) ||
- get_inode_sd_version (inode) == STAT_DATA_V1 ||
- !reiserfs_xattrs(inode->i_sb))
- {
- return 0;
- }
- reiserfs_read_lock_xattrs (inode->i_sb);
- dir = open_xa_dir (inode, FL_READONLY);
- reiserfs_read_unlock_xattrs (inode->i_sb);
- if (IS_ERR (dir)) {
- err = PTR_ERR (dir);
- goto out;
- } else if (!dir->d_inode) {
- dput (dir);
- return 0;
- }
-
- fp = dentry_open (dir, NULL, O_RDWR);
- if (IS_ERR (fp)) {
- err = PTR_ERR (fp);
- /* dentry_open dputs the dentry if it fails */
- goto out;
- }
-
- lock_kernel ();
- err = xattr_readdir (fp, reiserfs_delete_xattrs_filler, dir);
- if (err) {
- unlock_kernel ();
- goto out_dir;
- }
-
- /* Leftovers besides . and .. -- that's not good. */
- if (dir->d_inode->i_nlink <= 2) {
- root = get_xa_root (inode->i_sb);
- reiserfs_write_lock_xattrs (inode->i_sb);
- err = vfs_rmdir (root->d_inode, dir);
- reiserfs_write_unlock_xattrs (inode->i_sb);
- dput (root);
- } else {
- reiserfs_warning (inode->i_sb,
- "Couldn't remove all entries in directory");
- }
- unlock_kernel ();
-
-out_dir:
- fput(fp);
-
-out:
- if (!err)
- REISERFS_I(inode)->i_flags = REISERFS_I(inode)->i_flags & ~i_has_xattr_dir;
- return err;
+ struct file *fp;
+ struct dentry *dir, *root;
+ int err = 0;
+
+ /* Skip out, an xattr has no xattrs associated with it */
+ if (is_reiserfs_priv_object(inode) ||
+ get_inode_sd_version(inode) == STAT_DATA_V1 ||
+ !reiserfs_xattrs(inode->i_sb)) {
+ return 0;
+ }
+ reiserfs_read_lock_xattrs(inode->i_sb);
+ dir = open_xa_dir(inode, FL_READONLY);
+ reiserfs_read_unlock_xattrs(inode->i_sb);
+ if (IS_ERR(dir)) {
+ err = PTR_ERR(dir);
+ goto out;
+ } else if (!dir->d_inode) {
+ dput(dir);
+ return 0;
+ }
+
+ fp = dentry_open(dir, NULL, O_RDWR);
+ if (IS_ERR(fp)) {
+ err = PTR_ERR(fp);
+ /* dentry_open dputs the dentry if it fails */
+ goto out;
+ }
+
+ lock_kernel();
+ err = xattr_readdir(fp, reiserfs_delete_xattrs_filler, dir);
+ if (err) {
+ unlock_kernel();
+ goto out_dir;
+ }
+
+ /* Leftovers besides . and .. -- that's not good. */
+ if (dir->d_inode->i_nlink <= 2) {
+ root = get_xa_root(inode->i_sb);
+ reiserfs_write_lock_xattrs(inode->i_sb);
+ err = vfs_rmdir(root->d_inode, dir);
+ reiserfs_write_unlock_xattrs(inode->i_sb);
+ dput(root);
+ } else {
+ reiserfs_warning(inode->i_sb,
+ "Couldn't remove all entries in directory");
+ }
+ unlock_kernel();
+
+ out_dir:
+ fput(fp);
+
+ out:
+ if (!err)
+ REISERFS_I(inode)->i_flags =
+ REISERFS_I(inode)->i_flags & ~i_has_xattr_dir;
+ return err;
}
struct reiserfs_chown_buf {
- struct inode *inode;
- struct dentry *xadir;
- struct iattr *attrs;
+ struct inode *inode;
+ struct dentry *xadir;
+ struct iattr *attrs;
};
/* XXX: If there is a better way to do this, I'd love to hear about it */
static int
-reiserfs_chown_xattrs_filler (void *buf, const char *name, int namelen,
- loff_t offset, ino_t ino, unsigned int d_type)
+reiserfs_chown_xattrs_filler(void *buf, const char *name, int namelen,
+ loff_t offset, ino_t ino, unsigned int d_type)
{
- struct reiserfs_chown_buf *chown_buf = (struct reiserfs_chown_buf *)buf;
- struct dentry *xafile, *xadir = chown_buf->xadir;
- struct iattr *attrs = chown_buf->attrs;
- int err = 0;
-
- xafile = lookup_one_len (name, xadir, namelen);
- if (IS_ERR (xafile))
- return PTR_ERR (xafile);
- else if (!xafile->d_inode) {
- dput (xafile);
- return -ENODATA;
- }
-
- if (!S_ISDIR (xafile->d_inode->i_mode))
- err = notify_change (xafile, attrs);
- dput (xafile);
-
- return err;
+ struct reiserfs_chown_buf *chown_buf = (struct reiserfs_chown_buf *)buf;
+ struct dentry *xafile, *xadir = chown_buf->xadir;
+ struct iattr *attrs = chown_buf->attrs;
+ int err = 0;
+
+ xafile = lookup_one_len(name, xadir, namelen);
+ if (IS_ERR(xafile))
+ return PTR_ERR(xafile);
+ else if (!xafile->d_inode) {
+ dput(xafile);
+ return -ENODATA;
+ }
+
+ if (!S_ISDIR(xafile->d_inode->i_mode))
+ err = notify_change(xafile, attrs);
+ dput(xafile);
+
+ return err;
}
-int
-reiserfs_chown_xattrs (struct inode *inode, struct iattr *attrs)
+int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
{
- struct file *fp;
- struct dentry *dir;
- int err = 0;
- struct reiserfs_chown_buf buf;
- unsigned int ia_valid = attrs->ia_valid;
-
- /* Skip out, an xattr has no xattrs associated with it */
- if (is_reiserfs_priv_object (inode) ||
- get_inode_sd_version (inode) == STAT_DATA_V1 ||
- !reiserfs_xattrs(inode->i_sb))
- {
- return 0;
- }
- reiserfs_read_lock_xattrs (inode->i_sb);
- dir = open_xa_dir (inode, FL_READONLY);
- reiserfs_read_unlock_xattrs (inode->i_sb);
- if (IS_ERR (dir)) {
- if (PTR_ERR (dir) != -ENODATA)
- err = PTR_ERR (dir);
- goto out;
- } else if (!dir->d_inode) {
- dput (dir);
- goto out;
- }
-
- fp = dentry_open (dir, NULL, O_RDWR);
- if (IS_ERR (fp)) {
- err = PTR_ERR (fp);
- /* dentry_open dputs the dentry if it fails */
- goto out;
- }
-
- lock_kernel ();
-
- attrs->ia_valid &= (ATTR_UID | ATTR_GID | ATTR_CTIME);
- buf.xadir = dir;
- buf.attrs = attrs;
- buf.inode = inode;
-
- err = xattr_readdir (fp, reiserfs_chown_xattrs_filler, &buf);
- if (err) {
- unlock_kernel ();
- goto out_dir;
- }
-
- err = notify_change (dir, attrs);
- unlock_kernel ();
-
-out_dir:
- fput(fp);
-
-out:
- attrs->ia_valid = ia_valid;
- return err;
-}
+ struct file *fp;
+ struct dentry *dir;
+ int err = 0;
+ struct reiserfs_chown_buf buf;
+ unsigned int ia_valid = attrs->ia_valid;
+
+ /* Skip out, an xattr has no xattrs associated with it */
+ if (is_reiserfs_priv_object(inode) ||
+ get_inode_sd_version(inode) == STAT_DATA_V1 ||
+ !reiserfs_xattrs(inode->i_sb)) {
+ return 0;
+ }
+ reiserfs_read_lock_xattrs(inode->i_sb);
+ dir = open_xa_dir(inode, FL_READONLY);
+ reiserfs_read_unlock_xattrs(inode->i_sb);
+ if (IS_ERR(dir)) {
+ if (PTR_ERR(dir) != -ENODATA)
+ err = PTR_ERR(dir);
+ goto out;
+ } else if (!dir->d_inode) {
+ dput(dir);
+ goto out;
+ }
+
+ fp = dentry_open(dir, NULL, O_RDWR);
+ if (IS_ERR(fp)) {
+ err = PTR_ERR(fp);
+ /* dentry_open dputs the dentry if it fails */
+ goto out;
+ }
+ lock_kernel();
+
+ attrs->ia_valid &= (ATTR_UID | ATTR_GID | ATTR_CTIME);
+ buf.xadir = dir;
+ buf.attrs = attrs;
+ buf.inode = inode;
+
+ err = xattr_readdir(fp, reiserfs_chown_xattrs_filler, &buf);
+ if (err) {
+ unlock_kernel();
+ goto out_dir;
+ }
+
+ err = notify_change(dir, attrs);
+ unlock_kernel();
+
+ out_dir:
+ fput(fp);
+
+ out:
+ attrs->ia_valid = ia_valid;
+ return err;
+}
/* Actual operations that are exported to VFS-land */
@@ -946,61 +950,60 @@ out:
* Preliminary locking: we down dentry->d_inode->i_sem
*/
ssize_t
-reiserfs_getxattr (struct dentry *dentry, const char *name, void *buffer,
- size_t size)
+reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
+ size_t size)
{
- struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix (name);
- int err;
-
- if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
- get_inode_sd_version (dentry->d_inode) == STAT_DATA_V1)
- return -EOPNOTSUPP;
-
- reiserfs_read_lock_xattr_i (dentry->d_inode);
- reiserfs_read_lock_xattrs (dentry->d_sb);
- err = xah->get (dentry->d_inode, name, buffer, size);
- reiserfs_read_unlock_xattrs (dentry->d_sb);
- reiserfs_read_unlock_xattr_i (dentry->d_inode);
- return err;
+ struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix(name);
+ int err;
+
+ if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
+ get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
+ return -EOPNOTSUPP;
+
+ reiserfs_read_lock_xattr_i(dentry->d_inode);
+ reiserfs_read_lock_xattrs(dentry->d_sb);
+ err = xah->get(dentry->d_inode, name, buffer, size);
+ reiserfs_read_unlock_xattrs(dentry->d_sb);
+ reiserfs_read_unlock_xattr_i(dentry->d_inode);
+ return err;
}
-
/*
* Inode operation setxattr()
*
* dentry->d_inode->i_sem down
*/
int
-reiserfs_setxattr (struct dentry *dentry, const char *name, const void *value,
- size_t size, int flags)
+reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
+ size_t size, int flags)
{
- struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix (name);
- int err;
- int lock;
-
- if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
- get_inode_sd_version (dentry->d_inode) == STAT_DATA_V1)
- return -EOPNOTSUPP;
-
- if (IS_RDONLY (dentry->d_inode))
- return -EROFS;
-
- if (IS_IMMUTABLE (dentry->d_inode) || IS_APPEND (dentry->d_inode))
- return -EROFS;
-
- reiserfs_write_lock_xattr_i (dentry->d_inode);
- lock = !has_xattr_dir (dentry->d_inode);
- if (lock)
- reiserfs_write_lock_xattrs (dentry->d_sb);
- else
- reiserfs_read_lock_xattrs (dentry->d_sb);
- err = xah->set (dentry->d_inode, name, value, size, flags);
- if (lock)
- reiserfs_write_unlock_xattrs (dentry->d_sb);
- else
- reiserfs_read_unlock_xattrs (dentry->d_sb);
- reiserfs_write_unlock_xattr_i (dentry->d_inode);
- return err;
+ struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix(name);
+ int err;
+ int lock;
+
+ if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
+ get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
+ return -EOPNOTSUPP;
+
+ if (IS_RDONLY(dentry->d_inode))
+ return -EROFS;
+
+ if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode))
+ return -EROFS;
+
+ reiserfs_write_lock_xattr_i(dentry->d_inode);
+ lock = !has_xattr_dir(dentry->d_inode);
+ if (lock)
+ reiserfs_write_lock_xattrs(dentry->d_sb);
+ else
+ reiserfs_read_lock_xattrs(dentry->d_sb);
+ err = xah->set(dentry->d_inode, name, value, size, flags);
+ if (lock)
+ reiserfs_write_unlock_xattrs(dentry->d_sb);
+ else
+ reiserfs_read_unlock_xattrs(dentry->d_sb);
+ reiserfs_write_unlock_xattr_i(dentry->d_inode);
+ return err;
}
/*
@@ -1008,344 +1011,343 @@ reiserfs_setxattr (struct dentry *dentry, const char *name, const void *value,
*
* dentry->d_inode->i_sem down
*/
-int
-reiserfs_removexattr (struct dentry *dentry, const char *name)
+int reiserfs_removexattr(struct dentry *dentry, const char *name)
{
- int err;
- struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix (name);
+ int err;
+ struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix(name);
- if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
- get_inode_sd_version (dentry->d_inode) == STAT_DATA_V1)
- return -EOPNOTSUPP;
+ if (!xah || !reiserfs_xattrs(dentry->d_sb) ||
+ get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
+ return -EOPNOTSUPP;
- if (IS_RDONLY (dentry->d_inode))
- return -EROFS;
+ if (IS_RDONLY(dentry->d_inode))
+ return -EROFS;
- if (IS_IMMUTABLE (dentry->d_inode) || IS_APPEND (dentry->d_inode))
- return -EPERM;
+ if (IS_IMMUTABLE(dentry->d_inode) || IS_APPEND(dentry->d_inode))
+ return -EPERM;
- reiserfs_write_lock_xattr_i (dentry->d_inode);
- reiserfs_read_lock_xattrs (dentry->d_sb);
+ reiserfs_write_lock_xattr_i(dentry->d_inode);
+ reiserfs_read_lock_xattrs(dentry->d_sb);
- /* Deletion pre-operation */
- if (xah->del) {
- err = xah->del (dentry->d_inode, name);
- if (err)
- goto out;
- }
+ /* Deletion pre-operation */
+ if (xah->del) {
+ err = xah->del(dentry->d_inode, name);
+ if (err)
+ goto out;
+ }
- err = reiserfs_xattr_del (dentry->d_inode, name);
+ err = reiserfs_xattr_del(dentry->d_inode, name);
- dentry->d_inode->i_ctime = CURRENT_TIME_SEC;
- mark_inode_dirty (dentry->d_inode);
+ dentry->d_inode->i_ctime = CURRENT_TIME_SEC;
+ mark_inode_dirty(dentry->d_inode);
-out:
- reiserfs_read_unlock_xattrs (dentry->d_sb);
- reiserfs_write_unlock_xattr_i (dentry->d_inode);
- return err;
+ out:
+ reiserfs_read_unlock_xattrs(dentry->d_sb);
+ reiserfs_write_unlock_xattr_i(dentry->d_inode);
+ return err;
}
-
/* This is what filldir will use:
* r_pos will always contain the amount of space required for the entire
* list. If r_pos becomes larger than r_size, we need more space and we
* return an error indicating this. If r_pos is less than r_size, then we've
* filled the buffer successfully and we return success */
struct reiserfs_listxattr_buf {
- int r_pos;
- int r_size;
- char *r_buf;
- struct inode *r_inode;
+ int r_pos;
+ int r_size;
+ char *r_buf;
+ struct inode *r_inode;
};
static int
-reiserfs_listxattr_filler (void *buf, const char *name, int namelen,
- loff_t offset, ino_t ino, unsigned int d_type)
+reiserfs_listxattr_filler(void *buf, const char *name, int namelen,
+ loff_t offset, ino_t ino, unsigned int d_type)
{
- struct reiserfs_listxattr_buf *b = (struct reiserfs_listxattr_buf *)buf;
- int len = 0;
- if (name[0] != '.' || (namelen != 1 && (name[1] != '.' || namelen != 2))) {
- struct reiserfs_xattr_handler *xah = find_xattr_handler_prefix (name);
- if (!xah) return 0; /* Unsupported xattr name, skip it */
-
- /* We call ->list() twice because the operation isn't required to just
- * return the name back - we want to make sure we have enough space */
- len += xah->list (b->r_inode, name, namelen, NULL);
-
- if (len) {
- if (b->r_pos + len + 1 <= b->r_size) {
- char *p = b->r_buf + b->r_pos;
- p += xah->list (b->r_inode, name, namelen, p);
- *p++ = '\0';
- }
- b->r_pos += len + 1;
- }
- }
-
- return 0;
+ struct reiserfs_listxattr_buf *b = (struct reiserfs_listxattr_buf *)buf;
+ int len = 0;
+ if (name[0] != '.'
+ || (namelen != 1 && (name[1] != '.' || namelen != 2))) {
+ struct reiserfs_xattr_handler *xah =
+ find_xattr_handler_prefix(name);
+ if (!xah)
+ return 0; /* Unsupported xattr name, skip it */
+
+ /* We call ->list() twice because the operation isn't required to just
+ * return the name back - we want to make sure we have enough space */
+ len += xah->list(b->r_inode, name, namelen, NULL);
+
+ if (len) {
+ if (b->r_pos + len + 1 <= b->r_size) {
+ char *p = b->r_buf + b->r_pos;
+ p += xah->list(b->r_inode, name, namelen, p);
+ *p++ = '\0';
+ }
+ b->r_pos += len + 1;
+ }
+ }
+
+ return 0;
}
+
/*
* Inode operation listxattr()
*
* Preliminary locking: we down dentry->d_inode->i_sem
*/
-ssize_t
-reiserfs_listxattr (struct dentry *dentry, char *buffer, size_t size)
+ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
{
- struct file *fp;
- struct dentry *dir;
- int err = 0;
- struct reiserfs_listxattr_buf buf;
-
- if (!dentry->d_inode)
- return -EINVAL;
-
- if (!reiserfs_xattrs(dentry->d_sb) ||
- get_inode_sd_version (dentry->d_inode) == STAT_DATA_V1)
- return -EOPNOTSUPP;
-
- reiserfs_read_lock_xattr_i (dentry->d_inode);
- reiserfs_read_lock_xattrs (dentry->d_sb);
- dir = open_xa_dir (dentry->d_inode, FL_READONLY);
- reiserfs_read_unlock_xattrs (dentry->d_sb);
- if (IS_ERR (dir)) {
- err = PTR_ERR (dir);
- if (err == -ENODATA)
- err = 0; /* Not an error if there aren't any xattrs */
- goto out;
- }
-
- fp = dentry_open (dir, NULL, O_RDWR);
- if (IS_ERR (fp)) {
- err = PTR_ERR (fp);
- /* dentry_open dputs the dentry if it fails */
- goto out;
- }
-
- buf.r_buf = buffer;
- buf.r_size = buffer ? size : 0;
- buf.r_pos = 0;
- buf.r_inode = dentry->d_inode;
-
- REISERFS_I(dentry->d_inode)->i_flags |= i_has_xattr_dir;
-
- err = xattr_readdir (fp, reiserfs_listxattr_filler, &buf);
- if (err)
- goto out_dir;
-
- if (buf.r_pos > buf.r_size && buffer != NULL)
- err = -ERANGE;
- else
- err = buf.r_pos;
-
-out_dir:
- fput(fp);
-
-out:
- reiserfs_read_unlock_xattr_i (dentry->d_inode);
- return err;
+ struct file *fp;
+ struct dentry *dir;
+ int err = 0;
+ struct reiserfs_listxattr_buf buf;
+
+ if (!dentry->d_inode)
+ return -EINVAL;
+
+ if (!reiserfs_xattrs(dentry->d_sb) ||
+ get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
+ return -EOPNOTSUPP;
+
+ reiserfs_read_lock_xattr_i(dentry->d_inode);
+ reiserfs_read_lock_xattrs(dentry->d_sb);
+ dir = open_xa_dir(dentry->d_inode, FL_READONLY);
+ reiserfs_read_unlock_xattrs(dentry->d_sb);
+ if (IS_ERR(dir)) {
+ err = PTR_ERR(dir);
+ if (err == -ENODATA)
+ err = 0; /* Not an error if there aren't any xattrs */
+ goto out;
+ }
+
+ fp = dentry_open(dir, NULL, O_RDWR);
+ if (IS_ERR(fp)) {
+ err = PTR_ERR(fp);
+ /* dentry_open dputs the dentry if it fails */
+ goto out;
+ }
+
+ buf.r_buf = buffer;
+ buf.r_size = buffer ? size : 0;
+ buf.r_pos = 0;
+ buf.r_inode = dentry->d_inode;
+
+ REISERFS_I(dentry->d_inode)->i_flags |= i_has_xattr_dir;
+
+ err = xattr_readdir(fp, reiserfs_listxattr_filler, &buf);
+ if (err)
+ goto out_dir;
+
+ if (buf.r_pos > buf.r_size && buffer != NULL)
+ err = -ERANGE;
+ else
+ err = buf.r_pos;
+
+ out_dir:
+ fput(fp);
+
+ out:
+ reiserfs_read_unlock_xattr_i(dentry->d_inode);
+ return err;
}
/* This is the implementation for the xattr plugin infrastructure */
-static struct list_head xattr_handlers = LIST_HEAD_INIT (xattr_handlers);
+static struct list_head xattr_handlers = LIST_HEAD_INIT(xattr_handlers);
static DEFINE_RWLOCK(handler_lock);
-static struct reiserfs_xattr_handler *
-find_xattr_handler_prefix (const char *prefix)
+static struct reiserfs_xattr_handler *find_xattr_handler_prefix(const char
+ *prefix)
{
- struct reiserfs_xattr_handler *xah = NULL;
- struct list_head *p;
-
- read_lock (&handler_lock);
- list_for_each (p, &xattr_handlers) {
- xah = list_entry (p, struct reiserfs_xattr_handler, handlers);
- if (strncmp (xah->prefix, prefix, strlen (xah->prefix)) == 0)
- break;
- xah = NULL;
- }
-
- read_unlock (&handler_lock);
- return xah;
+ struct reiserfs_xattr_handler *xah = NULL;
+ struct list_head *p;
+
+ read_lock(&handler_lock);
+ list_for_each(p, &xattr_handlers) {
+ xah = list_entry(p, struct reiserfs_xattr_handler, handlers);
+ if (strncmp(xah->prefix, prefix, strlen(xah->prefix)) == 0)
+ break;
+ xah = NULL;
+ }
+
+ read_unlock(&handler_lock);
+ return xah;
}
-static void
-__unregister_handlers (void)
+static void __unregister_handlers(void)
{
- struct reiserfs_xattr_handler *xah;
- struct list_head *p, *tmp;
+ struct reiserfs_xattr_handler *xah;
+ struct list_head *p, *tmp;
- list_for_each_safe (p, tmp, &xattr_handlers) {
- xah = list_entry (p, struct reiserfs_xattr_handler, handlers);
- if (xah->exit)
- xah->exit();
+ list_for_each_safe(p, tmp, &xattr_handlers) {
+ xah = list_entry(p, struct reiserfs_xattr_handler, handlers);
+ if (xah->exit)
+ xah->exit();
- list_del_init (p);
- }
- INIT_LIST_HEAD (&xattr_handlers);
+ list_del_init(p);
+ }
+ INIT_LIST_HEAD(&xattr_handlers);
}
-int __init
-reiserfs_xattr_register_handlers (void)
+int __init reiserfs_xattr_register_handlers(void)
{
- int err = 0;
- struct reiserfs_xattr_handler *xah;
- struct list_head *p;
+ int err = 0;
+ struct reiserfs_xattr_handler *xah;
+ struct list_head *p;
- write_lock (&handler_lock);
+ write_lock(&handler_lock);
- /* If we're already initialized, nothing to do */
- if (!list_empty (&xattr_handlers)) {
- write_unlock (&handler_lock);
- return 0;
- }
+ /* If we're already initialized, nothing to do */
+ if (!list_empty(&xattr_handlers)) {
+ write_unlock(&handler_lock);
+ return 0;
+ }
- /* Add the handlers */
- list_add_tail (&user_handler.handlers, &xattr_handlers);
- list_add_tail (&trusted_handler.handlers, &xattr_handlers);
+ /* Add the handlers */
+ list_add_tail(&user_handler.handlers, &xattr_handlers);
+ list_add_tail(&trusted_handler.handlers, &xattr_handlers);
#ifdef CONFIG_REISERFS_FS_SECURITY
- list_add_tail (&security_handler.handlers, &xattr_handlers);
+ list_add_tail(&security_handler.handlers, &xattr_handlers);
#endif
#ifdef CONFIG_REISERFS_FS_POSIX_ACL
- list_add_tail (&posix_acl_access_handler.handlers, &xattr_handlers);
- list_add_tail (&posix_acl_default_handler.handlers, &xattr_handlers);
+ list_add_tail(&posix_acl_access_handler.handlers, &xattr_handlers);
+ list_add_tail(&posix_acl_default_handler.handlers, &xattr_handlers);
#endif
- /* Run initializers, if available */
- list_for_each (p, &xattr_handlers) {
- xah = list_entry (p, struct reiserfs_xattr_handler, handlers);
- if (xah->init) {
- err = xah->init ();
- if (err) {
- list_del_init (p);
- break;
- }
- }
- }
-
- /* Clean up other handlers, if any failed */
- if (err)
- __unregister_handlers ();
-
- write_unlock (&handler_lock);
- return err;
+ /* Run initializers, if available */
+ list_for_each(p, &xattr_handlers) {
+ xah = list_entry(p, struct reiserfs_xattr_handler, handlers);
+ if (xah->init) {
+ err = xah->init();
+ if (err) {
+ list_del_init(p);
+ break;
+ }
+ }
+ }
+
+ /* Clean up other handlers, if any failed */
+ if (err)
+ __unregister_handlers();
+
+ write_unlock(&handler_lock);
+ return err;
}
-void
-reiserfs_xattr_unregister_handlers (void)
+void reiserfs_xattr_unregister_handlers(void)
{
- write_lock (&handler_lock);
- __unregister_handlers ();
- write_unlock (&handler_lock);
+ write_lock(&handler_lock);
+ __unregister_handlers();
+ write_unlock(&handler_lock);
}
/* This will catch lookups from the fs root to .reiserfs_priv */
static int
-xattr_lookup_poison (struct dentry *dentry, struct qstr *q1, struct qstr *name)
+xattr_lookup_poison(struct dentry *dentry, struct qstr *q1, struct qstr *name)
{
- struct dentry *priv_root = REISERFS_SB(dentry->d_sb)->priv_root;
- if (name->len == priv_root->d_name.len &&
- name->hash == priv_root->d_name.hash &&
- !memcmp (name->name, priv_root->d_name.name, name->len)) {
- return -ENOENT;
- } else if (q1->len == name->len &&
- !memcmp(q1->name, name->name, name->len))
- return 0;
- return 1;
+ struct dentry *priv_root = REISERFS_SB(dentry->d_sb)->priv_root;
+ if (name->len == priv_root->d_name.len &&
+ name->hash == priv_root->d_name.hash &&
+ !memcmp(name->name, priv_root->d_name.name, name->len)) {
+ return -ENOENT;
+ } else if (q1->len == name->len &&
+ !memcmp(q1->name, name->name, name->len))
+ return 0;
+ return 1;
}
static struct dentry_operations xattr_lookup_poison_ops = {
- .d_compare = xattr_lookup_poison,
+ .d_compare = xattr_lookup_poison,
};
-
/* We need to take a copy of the mount flags since things like
* MS_RDONLY don't get set until *after* we're called.
* mount_flags != mount_options */
-int
-reiserfs_xattr_init (struct super_block *s, int mount_flags)
+int reiserfs_xattr_init(struct super_block *s, int mount_flags)
{
- int err = 0;
-
- /* We need generation numbers to ensure that the oid mapping is correct
- * v3.5 filesystems don't have them. */
- if (!old_format_only (s)) {
- set_bit (REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
- } else if (reiserfs_xattrs_optional (s)) {
- /* Old format filesystem, but optional xattrs have been enabled
- * at mount time. Error out. */
- reiserfs_warning (s, "xattrs/ACLs not supported on pre v3.6 "
- "format filesystem. Failing mount.");
- err = -EOPNOTSUPP;
- goto error;
- } else {
- /* Old format filesystem, but no optional xattrs have been enabled. This
- * means we silently disable xattrs on the filesystem. */
- clear_bit (REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
- }
-
- /* If we don't have the privroot located yet - go find it */
- if (reiserfs_xattrs (s) && !REISERFS_SB(s)->priv_root) {
- struct dentry *dentry;
- dentry = lookup_one_len (PRIVROOT_NAME, s->s_root,
- strlen (PRIVROOT_NAME));
- if (!IS_ERR (dentry)) {
- if (!(mount_flags & MS_RDONLY) && !dentry->d_inode) {
- struct inode *inode = dentry->d_parent->d_inode;
- down (&inode->i_sem);
- err = inode->i_op->mkdir (inode, dentry, 0700);
- up (&inode->i_sem);
- if (err) {
- dput (dentry);
- dentry = NULL;
- }
-
- if (dentry && dentry->d_inode)
- reiserfs_warning (s, "Created %s on %s - reserved for "
- "xattr storage.", PRIVROOT_NAME,
- reiserfs_bdevname (inode->i_sb));
- } else if (!dentry->d_inode) {
- dput (dentry);
- dentry = NULL;
- }
- } else
- err = PTR_ERR (dentry);
-
- if (!err && dentry) {
- s->s_root->d_op = &xattr_lookup_poison_ops;
- reiserfs_mark_inode_private (dentry->d_inode);
- REISERFS_SB(s)->priv_root = dentry;
- } else if (!(mount_flags & MS_RDONLY)) { /* xattrs are unavailable */
- /* If we're read-only it just means that the dir hasn't been
- * created. Not an error -- just no xattrs on the fs. We'll
- * check again if we go read-write */
- reiserfs_warning (s, "xattrs/ACLs enabled and couldn't "
- "find/create .reiserfs_priv. Failing mount.");
- err = -EOPNOTSUPP;
- }
- }
-
-error:
- /* This is only nonzero if there was an error initializing the xattr
- * directory or if there is a condition where we don't support them. */
- if (err) {
- clear_bit (REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
- clear_bit (REISERFS_XATTRS_USER, &(REISERFS_SB(s)->s_mount_opt));
- clear_bit (REISERFS_POSIXACL, &(REISERFS_SB(s)->s_mount_opt));
- }
-
- /* The super_block MS_POSIXACL must mirror the (no)acl mount option. */
- s->s_flags = s->s_flags & ~MS_POSIXACL;
- if (reiserfs_posixacl (s))
- s->s_flags |= MS_POSIXACL;
-
- return err;
+ int err = 0;
+
+ /* We need generation numbers to ensure that the oid mapping is correct
+ * v3.5 filesystems don't have them. */
+ if (!old_format_only(s)) {
+ set_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
+ } else if (reiserfs_xattrs_optional(s)) {
+ /* Old format filesystem, but optional xattrs have been enabled
+ * at mount time. Error out. */
+ reiserfs_warning(s, "xattrs/ACLs not supported on pre v3.6 "
+ "format filesystem. Failing mount.");
+ err = -EOPNOTSUPP;
+ goto error;
+ } else {
+ /* Old format filesystem, but no optional xattrs have been enabled. This
+ * means we silently disable xattrs on the filesystem. */
+ clear_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
+ }
+
+ /* If we don't have the privroot located yet - go find it */
+ if (reiserfs_xattrs(s) && !REISERFS_SB(s)->priv_root) {
+ struct dentry *dentry;
+ dentry = lookup_one_len(PRIVROOT_NAME, s->s_root,
+ strlen(PRIVROOT_NAME));
+ if (!IS_ERR(dentry)) {
+ if (!(mount_flags & MS_RDONLY) && !dentry->d_inode) {
+ struct inode *inode = dentry->d_parent->d_inode;
+ down(&inode->i_sem);
+ err = inode->i_op->mkdir(inode, dentry, 0700);
+ up(&inode->i_sem);
+ if (err) {
+ dput(dentry);
+ dentry = NULL;
+ }
+
+ if (dentry && dentry->d_inode)
+ reiserfs_warning(s,
+ "Created %s on %s - reserved for "
+ "xattr storage.",
+ PRIVROOT_NAME,
+ reiserfs_bdevname
+ (inode->i_sb));
+ } else if (!dentry->d_inode) {
+ dput(dentry);
+ dentry = NULL;
+ }
+ } else
+ err = PTR_ERR(dentry);
+
+ if (!err && dentry) {
+ s->s_root->d_op = &xattr_lookup_poison_ops;
+ reiserfs_mark_inode_private(dentry->d_inode);
+ REISERFS_SB(s)->priv_root = dentry;
+ } else if (!(mount_flags & MS_RDONLY)) { /* xattrs are unavailable */
+ /* If we're read-only it just means that the dir hasn't been
+ * created. Not an error -- just no xattrs on the fs. We'll
+ * check again if we go read-write */
+ reiserfs_warning(s, "xattrs/ACLs enabled and couldn't "
+ "find/create .reiserfs_priv. Failing mount.");
+ err = -EOPNOTSUPP;
+ }
+ }
+
+ error:
+ /* This is only nonzero if there was an error initializing the xattr
+ * directory or if there is a condition where we don't support them. */
+ if (err) {
+ clear_bit(REISERFS_XATTRS, &(REISERFS_SB(s)->s_mount_opt));
+ clear_bit(REISERFS_XATTRS_USER, &(REISERFS_SB(s)->s_mount_opt));
+ clear_bit(REISERFS_POSIXACL, &(REISERFS_SB(s)->s_mount_opt));
+ }
+
+ /* The super_block MS_POSIXACL must mirror the (no)acl mount option. */
+ s->s_flags = s->s_flags & ~MS_POSIXACL;
+ if (reiserfs_posixacl(s))
+ s->s_flags |= MS_POSIXACL;
+
+ return err;
}
static int
-__reiserfs_permission (struct inode *inode, int mask, struct nameidata *nd,
- int need_lock)
+__reiserfs_permission(struct inode *inode, int mask, struct nameidata *nd,
+ int need_lock)
{
- umode_t mode = inode->i_mode;
+ umode_t mode = inode->i_mode;
if (mask & MAY_WRITE) {
/*
@@ -1363,50 +1365,50 @@ __reiserfs_permission (struct inode *inode, int mask, struct nameidata *nd,
}
/* We don't do permission checks on the internal objects.
- * Permissions are determined by the "owning" object. */
- if (is_reiserfs_priv_object (inode))
+ * Permissions are determined by the "owning" object. */
+ if (is_reiserfs_priv_object(inode))
return 0;
if (current->fsuid == inode->i_uid) {
mode >>= 6;
#ifdef CONFIG_REISERFS_FS_POSIX_ACL
} else if (reiserfs_posixacl(inode->i_sb) &&
- get_inode_sd_version (inode) != STAT_DATA_V1) {
- struct posix_acl *acl;
+ get_inode_sd_version(inode) != STAT_DATA_V1) {
+ struct posix_acl *acl;
/* ACL can't contain additional permissions if
the ACL_MASK entry is 0 */
if (!(mode & S_IRWXG))
goto check_groups;
- if (need_lock) {
- reiserfs_read_lock_xattr_i (inode);
- reiserfs_read_lock_xattrs (inode->i_sb);
+ if (need_lock) {
+ reiserfs_read_lock_xattr_i(inode);
+ reiserfs_read_lock_xattrs(inode->i_sb);
+ }
+ acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
+ if (need_lock) {
+ reiserfs_read_unlock_xattrs(inode->i_sb);
+ reiserfs_read_unlock_xattr_i(inode);
}
- acl = reiserfs_get_acl (inode, ACL_TYPE_ACCESS);
- if (need_lock) {
- reiserfs_read_unlock_xattrs (inode->i_sb);
- reiserfs_read_unlock_xattr_i (inode);
+ if (IS_ERR(acl)) {
+ if (PTR_ERR(acl) == -ENODATA)
+ goto check_groups;
+ return PTR_ERR(acl);
}
- if (IS_ERR (acl)) {
- if (PTR_ERR (acl) == -ENODATA)
- goto check_groups;
- return PTR_ERR (acl);
- }
-
- if (acl) {
- int err = posix_acl_permission (inode, acl, mask);
- posix_acl_release (acl);
- if (err == -EACCES) {
- goto check_capabilities;
- }
- return err;
+
+ if (acl) {
+ int err = posix_acl_permission(inode, acl, mask);
+ posix_acl_release(acl);
+ if (err == -EACCES) {
+ goto check_capabilities;
+ }
+ return err;
} else {
goto check_groups;
- }
+ }
#endif
} else {
-check_groups:
+ check_groups:
if (in_group_p(inode->i_gid))
mode >>= 3;
}
@@ -1414,10 +1416,10 @@ check_groups:
/*
* If the DACs are ok we don't need any capability check.
*/
- if (((mode & mask & (MAY_READ|MAY_WRITE|MAY_EXEC)) == mask))
+ if (((mode & mask & (MAY_READ | MAY_WRITE | MAY_EXEC)) == mask))
return 0;
-check_capabilities:
+ check_capabilities:
/*
* Read/write DACs are always overridable.
* Executable DACs are overridable if at least one exec bit is set.
@@ -1437,14 +1439,13 @@ check_capabilities:
return -EACCES;
}
-int
-reiserfs_permission (struct inode *inode, int mask, struct nameidata *nd)
+int reiserfs_permission(struct inode *inode, int mask, struct nameidata *nd)
{
- return __reiserfs_permission (inode, mask, nd, 1);
+ return __reiserfs_permission(inode, mask, nd, 1);
}
int
-reiserfs_permission_locked (struct inode *inode, int mask, struct nameidata *nd)
+reiserfs_permission_locked(struct inode *inode, int mask, struct nameidata *nd)
{
- return __reiserfs_permission (inode, mask, nd, 0);
+ return __reiserfs_permission(inode, mask, nd, 0);
}