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Diffstat (limited to 'fs/nfs/inode.c')
-rw-r--r--fs/nfs/inode.c311
1 files changed, 211 insertions, 100 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index f7296983eba6..af6e806044d7 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -32,7 +32,6 @@
#include <linux/lockd/bind.h>
#include <linux/seq_file.h>
#include <linux/mount.h>
-#include <linux/nfs_idmap.h>
#include <linux/vfs.h>
#include <linux/inet.h>
#include <linux/nfs_xdr.h>
@@ -49,8 +48,8 @@
#include "iostat.h"
#include "internal.h"
#include "fscache.h"
-#include "dns_resolve.h"
#include "pnfs.h"
+#include "nfs.h"
#include "netns.h"
#define NFSDBG_FACILITY NFSDBG_VFS
@@ -79,9 +78,10 @@ int nfs_wait_bit_killable(void *word)
{
if (fatal_signal_pending(current))
return -ERESTARTSYS;
- freezable_schedule();
+ freezable_schedule_unsafe();
return 0;
}
+EXPORT_SYMBOL_GPL(nfs_wait_bit_killable);
/**
* nfs_compat_user_ino64 - returns the user-visible inode number
@@ -106,17 +106,24 @@ u64 nfs_compat_user_ino64(u64 fileid)
return ino;
}
-static void nfs_clear_inode(struct inode *inode)
+int nfs_drop_inode(struct inode *inode)
+{
+ return NFS_STALE(inode) || generic_drop_inode(inode);
+}
+EXPORT_SYMBOL_GPL(nfs_drop_inode);
+
+void nfs_clear_inode(struct inode *inode)
{
/*
* The following should never happen...
*/
- BUG_ON(nfs_have_writebacks(inode));
- BUG_ON(!list_empty(&NFS_I(inode)->open_files));
+ WARN_ON_ONCE(nfs_have_writebacks(inode));
+ WARN_ON_ONCE(!list_empty(&NFS_I(inode)->open_files));
nfs_zap_acl_cache(inode);
nfs_access_zap_cache(inode);
nfs_fscache_release_inode_cookie(inode);
}
+EXPORT_SYMBOL_GPL(nfs_clear_inode);
void nfs_evict_inode(struct inode *inode)
{
@@ -152,11 +159,21 @@ static void nfs_zap_caches_locked(struct inode *inode)
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
nfsi->attrtimeo_timestamp = jiffies;
- memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode)));
- if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE;
- else
- nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE;
+ memset(NFS_I(inode)->cookieverf, 0, sizeof(NFS_I(inode)->cookieverf));
+ if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) {
+ nfs_fscache_invalidate(inode);
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR
+ | NFS_INO_INVALID_LABEL
+ | NFS_INO_INVALID_DATA
+ | NFS_INO_INVALID_ACCESS
+ | NFS_INO_INVALID_ACL
+ | NFS_INO_REVAL_PAGECACHE;
+ } else
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR
+ | NFS_INO_INVALID_LABEL
+ | NFS_INO_INVALID_ACCESS
+ | NFS_INO_INVALID_ACL
+ | NFS_INO_REVAL_PAGECACHE;
}
void nfs_zap_caches(struct inode *inode)
@@ -171,6 +188,7 @@ void nfs_zap_mapping(struct inode *inode, struct address_space *mapping)
if (mapping->nrpages != 0) {
spin_lock(&inode->i_lock);
NFS_I(inode)->cache_validity |= NFS_INO_INVALID_DATA;
+ nfs_fscache_invalidate(inode);
spin_unlock(&inode->i_lock);
}
}
@@ -186,6 +204,7 @@ void nfs_zap_acl_cache(struct inode *inode)
NFS_I(inode)->cache_validity &= ~NFS_INO_INVALID_ACL;
spin_unlock(&inode->i_lock);
}
+EXPORT_SYMBOL_GPL(nfs_zap_acl_cache);
void nfs_invalidate_atime(struct inode *inode)
{
@@ -193,6 +212,7 @@ void nfs_invalidate_atime(struct inode *inode)
NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ATIME;
spin_unlock(&inode->i_lock);
}
+EXPORT_SYMBOL_GPL(nfs_invalidate_atime);
/*
* Invalidate, but do not unhash, the inode.
@@ -224,6 +244,8 @@ nfs_find_actor(struct inode *inode, void *opaque)
if (NFS_FILEID(inode) != fattr->fileid)
return 0;
+ if ((S_IFMT & inode->i_mode) != (S_IFMT & fattr->mode))
+ return 0;
if (nfs_compare_fh(NFS_FH(inode), fh))
return 0;
if (is_bad_inode(inode) || NFS_STALE(inode))
@@ -242,12 +264,72 @@ nfs_init_locked(struct inode *inode, void *opaque)
return 0;
}
+#ifdef CONFIG_NFS_V4_SECURITY_LABEL
+void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
+ struct nfs4_label *label)
+{
+ int error;
+
+ if (label == NULL)
+ return;
+
+ if (nfs_server_capable(inode, NFS_CAP_SECURITY_LABEL) == 0)
+ return;
+
+ if (NFS_SERVER(inode)->nfs_client->cl_minorversion < 2)
+ return;
+
+ if ((fattr->valid & NFS_ATTR_FATTR_V4_SECURITY_LABEL) && inode->i_security) {
+ error = security_inode_notifysecctx(inode, label->label,
+ label->len);
+ if (error)
+ printk(KERN_ERR "%s() %s %d "
+ "security_inode_notifysecctx() %d\n",
+ __func__,
+ (char *)label->label,
+ label->len, error);
+ }
+}
+
+struct nfs4_label *nfs4_label_alloc(struct nfs_server *server, gfp_t flags)
+{
+ struct nfs4_label *label = NULL;
+ int minor_version = server->nfs_client->cl_minorversion;
+
+ if (minor_version < 2)
+ return label;
+
+ if (!(server->caps & NFS_CAP_SECURITY_LABEL))
+ return label;
+
+ label = kzalloc(sizeof(struct nfs4_label), flags);
+ if (label == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ label->label = kzalloc(NFS4_MAXLABELLEN, flags);
+ if (label->label == NULL) {
+ kfree(label);
+ return ERR_PTR(-ENOMEM);
+ }
+ label->len = NFS4_MAXLABELLEN;
+
+ return label;
+}
+EXPORT_SYMBOL_GPL(nfs4_label_alloc);
+#else
+void inline nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
+ struct nfs4_label *label)
+{
+}
+#endif
+EXPORT_SYMBOL_GPL(nfs_setsecurity);
+
/*
* This is our front-end to iget that looks up inodes by file handle
* instead of inode number.
*/
struct inode *
-nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
+nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, struct nfs4_label *label)
{
struct nfs_find_desc desc = {
.fh = fh,
@@ -319,8 +401,8 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
inode->i_version = 0;
inode->i_size = 0;
clear_nlink(inode);
- inode->i_uid = -2;
- inode->i_gid = -2;
+ inode->i_uid = make_kuid(&init_user_ns, -2);
+ inode->i_gid = make_kgid(&init_user_ns, -2);
inode->i_blocks = 0;
memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
nfsi->write_io = 0;
@@ -369,6 +451,9 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
*/
inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
}
+
+ nfs_setsecurity(inode, fattr, label);
+
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
nfsi->attrtimeo_timestamp = now;
nfsi->access_cache = RB_ROOT;
@@ -378,6 +463,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
unlock_new_inode(inode);
} else
nfs_refresh_inode(inode, fattr);
+ nfs_setsecurity(inode, fattr, label);
dprintk("NFS: nfs_fhget(%s/%Ld fh_crc=0x%08x ct=%d)\n",
inode->i_sb->s_id,
(long long)NFS_FILEID(inode),
@@ -391,6 +477,7 @@ out_no_inode:
dprintk("nfs_fhget: iget failed with error %ld\n", PTR_ERR(inode));
goto out;
}
+EXPORT_SYMBOL_GPL(nfs_fhget);
#define NFS_VALID_ATTRS (ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_SIZE|ATTR_ATIME|ATTR_ATIME_SET|ATTR_MTIME|ATTR_MTIME_SET|ATTR_FILE|ATTR_OPEN)
@@ -430,14 +517,15 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
* Return any delegations if we're going to change ACLs
*/
if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID)) != 0)
- nfs_inode_return_delegation(inode);
+ NFS_PROTO(inode)->return_delegation(inode);
error = NFS_PROTO(inode)->setattr(dentry, fattr, attr);
if (error == 0)
- nfs_refresh_inode(inode, fattr);
+ error = nfs_refresh_inode(inode, fattr);
nfs_free_fattr(fattr);
out:
return error;
}
+EXPORT_SYMBOL_GPL(nfs_setattr);
/**
* nfs_vmtruncate - unmap mappings "freed" by truncate() syscall
@@ -496,6 +584,7 @@ void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr)
nfs_vmtruncate(inode, attr->ia_size);
}
}
+EXPORT_SYMBOL_GPL(nfs_setattr_update_inode);
int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
{
@@ -535,27 +624,30 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
out:
return err;
}
+EXPORT_SYMBOL_GPL(nfs_getattr);
static void nfs_init_lock_context(struct nfs_lock_context *l_ctx)
{
atomic_set(&l_ctx->count, 1);
- l_ctx->lockowner = current->files;
- l_ctx->pid = current->tgid;
+ l_ctx->lockowner.l_owner = current->files;
+ l_ctx->lockowner.l_pid = current->tgid;
INIT_LIST_HEAD(&l_ctx->list);
+ nfs_iocounter_init(&l_ctx->io_count);
}
static struct nfs_lock_context *__nfs_find_lock_context(struct nfs_open_context *ctx)
{
- struct nfs_lock_context *pos;
+ struct nfs_lock_context *head = &ctx->lock_context;
+ struct nfs_lock_context *pos = head;
- list_for_each_entry(pos, &ctx->lock_context.list, list) {
- if (pos->lockowner != current->files)
+ do {
+ if (pos->lockowner.l_owner != current->files)
continue;
- if (pos->pid != current->tgid)
+ if (pos->lockowner.l_pid != current->tgid)
continue;
atomic_inc(&pos->count);
return pos;
- }
+ } while ((pos = list_entry(pos->list.next, typeof(*pos), list)) != head);
return NULL;
}
@@ -570,7 +662,7 @@ struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx)
spin_unlock(&inode->i_lock);
new = kmalloc(sizeof(*new), GFP_KERNEL);
if (new == NULL)
- return NULL;
+ return ERR_PTR(-ENOMEM);
nfs_init_lock_context(new);
spin_lock(&inode->i_lock);
res = __nfs_find_lock_context(ctx);
@@ -623,6 +715,7 @@ void nfs_close_context(struct nfs_open_context *ctx, int is_sync)
return;
nfs_revalidate_inode(server, inode);
}
+EXPORT_SYMBOL_GPL(nfs_close_context);
struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode)
{
@@ -649,6 +742,7 @@ struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f
ctx->mdsthreshold = NULL;
return ctx;
}
+EXPORT_SYMBOL_GPL(alloc_nfs_open_context);
struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
{
@@ -656,6 +750,7 @@ struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
atomic_inc(&ctx->lock_context.count);
return ctx;
}
+EXPORT_SYMBOL_GPL(get_nfs_open_context);
static void __put_nfs_open_context(struct nfs_open_context *ctx, int is_sync)
{
@@ -683,21 +778,30 @@ void put_nfs_open_context(struct nfs_open_context *ctx)
{
__put_nfs_open_context(ctx, 0);
}
+EXPORT_SYMBOL_GPL(put_nfs_open_context);
/*
* Ensure that mmap has a recent RPC credential for use when writing out
* shared pages
*/
-void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx)
+void nfs_inode_attach_open_context(struct nfs_open_context *ctx)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
+ struct inode *inode = ctx->dentry->d_inode;
struct nfs_inode *nfsi = NFS_I(inode);
- filp->private_data = get_nfs_open_context(ctx);
spin_lock(&inode->i_lock);
list_add(&ctx->list, &nfsi->open_files);
spin_unlock(&inode->i_lock);
}
+EXPORT_SYMBOL_GPL(nfs_inode_attach_open_context);
+
+void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx)
+{
+ filp->private_data = get_nfs_open_context(ctx);
+ if (list_empty(&ctx->list))
+ nfs_inode_attach_open_context(ctx);
+}
+EXPORT_SYMBOL_GPL(nfs_file_set_open_context);
/*
* Given an inode, search for an open context with the desired characteristics
@@ -722,10 +826,11 @@ struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_c
static void nfs_file_clear_open_context(struct file *filp)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
struct nfs_open_context *ctx = nfs_file_open_context(filp);
if (ctx) {
+ struct inode *inode = ctx->dentry->d_inode;
+
filp->private_data = NULL;
spin_lock(&inode->i_lock);
list_move_tail(&ctx->list, &NFS_I(inode)->open_files);
@@ -764,6 +869,7 @@ int
__nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
{
int status = -ESTALE;
+ struct nfs4_label *label = NULL;
struct nfs_fattr *fattr = NULL;
struct nfs_inode *nfsi = NFS_I(inode);
@@ -781,7 +887,14 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
goto out;
nfs_inc_stats(inode, NFSIOS_INODEREVALIDATE);
- status = NFS_PROTO(inode)->getattr(server, NFS_FH(inode), fattr);
+
+ label = nfs4_label_alloc(NFS_SERVER(inode), GFP_KERNEL);
+ if (IS_ERR(label)) {
+ status = PTR_ERR(label);
+ goto out;
+ }
+
+ status = NFS_PROTO(inode)->getattr(server, NFS_FH(inode), fattr, label);
if (status != 0) {
dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) getattr failed, error=%d\n",
inode->i_sb->s_id,
@@ -791,7 +904,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
if (!S_ISDIR(inode->i_mode))
set_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
}
- goto out;
+ goto err_out;
}
status = nfs_refresh_inode(inode, fattr);
@@ -799,7 +912,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) refresh failed, error=%d\n",
inode->i_sb->s_id,
(long long)NFS_FILEID(inode), status);
- goto out;
+ goto err_out;
}
if (nfsi->cache_validity & NFS_INO_INVALID_ACL)
@@ -809,7 +922,9 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
inode->i_sb->s_id,
(long long)NFS_FILEID(inode));
- out:
+err_out:
+ nfs4_label_free(label);
+out:
nfs_free_fattr(fattr);
return status;
}
@@ -821,7 +936,7 @@ int nfs_attribute_timeout(struct inode *inode)
return !time_in_range_open(jiffies, nfsi->read_cache_jiffies, nfsi->read_cache_jiffies + nfsi->attrtimeo);
}
-static int nfs_attribute_cache_expired(struct inode *inode)
+int nfs_attribute_cache_expired(struct inode *inode)
{
if (nfs_have_delegated_attributes(inode))
return 0;
@@ -837,11 +952,13 @@ static int nfs_attribute_cache_expired(struct inode *inode)
*/
int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
{
- if (!(NFS_I(inode)->cache_validity & NFS_INO_INVALID_ATTR)
+ if (!(NFS_I(inode)->cache_validity &
+ (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_LABEL))
&& !nfs_attribute_cache_expired(inode))
return NFS_STALE(inode) ? -ESTALE : 0;
return __nfs_revalidate_inode(server, inode);
}
+EXPORT_SYMBOL_GPL(nfs_revalidate_inode);
static int nfs_invalidate_mapping(struct inode *inode, struct address_space *mapping)
{
@@ -858,7 +975,7 @@ static int nfs_invalidate_mapping(struct inode *inode, struct address_space *map
memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
spin_unlock(&inode->i_lock);
nfs_inc_stats(inode, NFSIOS_DATAINVALIDATE);
- nfs_fscache_reset_inode_cookie(inode);
+ nfs_fscache_wait_on_invalidate(inode);
dfprintk(PAGECACHE, "NFS: (%s/%Ld) data cache invalidated\n",
inode->i_sb->s_id, (long long)NFS_FILEID(inode));
return 0;
@@ -883,6 +1000,10 @@ int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
struct nfs_inode *nfsi = NFS_I(inode);
int ret = 0;
+ /* swapfiles are not supposed to be shared. */
+ if (IS_SWAPFILE(inode))
+ goto out;
+
if (nfs_mapping_need_revalidate_inode(inode)) {
ret = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
if (ret < 0)
@@ -930,6 +1051,10 @@ static unsigned long nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr
i_size_write(inode, nfs_size_to_loff_t(fattr->size));
ret |= NFS_INO_INVALID_ATTR;
}
+
+ if (nfsi->cache_validity & NFS_INO_INVALID_DATA)
+ nfs_fscache_invalidate(inode);
+
return ret;
}
@@ -975,9 +1100,9 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
/* Have any file permissions changed? */
if ((fattr->valid & NFS_ATTR_FATTR_MODE) && (inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO))
invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
- if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && inode->i_uid != fattr->uid)
+ if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && !uid_eq(inode->i_uid, fattr->uid))
invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
- if ((fattr->valid & NFS_ATTR_FATTR_GROUP) && inode->i_gid != fattr->gid)
+ if ((fattr->valid & NFS_ATTR_FATTR_GROUP) && !gid_eq(inode->i_gid, fattr->gid))
invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
/* Has the link count changed? */
@@ -1028,6 +1153,7 @@ void nfs_fattr_init(struct nfs_fattr *fattr)
fattr->owner_name = NULL;
fattr->group_name = NULL;
}
+EXPORT_SYMBOL_GPL(nfs_fattr_init);
struct nfs_fattr *nfs_alloc_fattr(void)
{
@@ -1038,6 +1164,7 @@ struct nfs_fattr *nfs_alloc_fattr(void)
nfs_fattr_init(fattr);
return fattr;
}
+EXPORT_SYMBOL_GPL(nfs_alloc_fattr);
struct nfs_fh *nfs_alloc_fhandle(void)
{
@@ -1048,6 +1175,7 @@ struct nfs_fh *nfs_alloc_fhandle(void)
fh->size = 0;
return fh;
}
+EXPORT_SYMBOL_GPL(nfs_alloc_fhandle);
#ifdef NFS_DEBUG
/*
@@ -1168,14 +1296,17 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
return status;
}
+EXPORT_SYMBOL_GPL(nfs_refresh_inode);
static int nfs_post_op_update_inode_locked(struct inode *inode, struct nfs_fattr *fattr)
{
struct nfs_inode *nfsi = NFS_I(inode);
nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
- if (S_ISDIR(inode->i_mode))
+ if (S_ISDIR(inode->i_mode)) {
nfsi->cache_validity |= NFS_INO_INVALID_DATA;
+ nfs_fscache_invalidate(inode);
+ }
if ((fattr->valid & NFS_ATTR_FATTR) == 0)
return 0;
return nfs_refresh_inode_locked(inode, fattr);
@@ -1202,8 +1333,10 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
spin_lock(&inode->i_lock);
status = nfs_post_op_update_inode_locked(inode, fattr);
spin_unlock(&inode->i_lock);
+
return status;
}
+EXPORT_SYMBOL_GPL(nfs_post_op_update_inode);
/**
* nfs_post_op_update_inode_force_wcc - try to update the inode attribute cache
@@ -1255,6 +1388,7 @@ out_noforce:
spin_unlock(&inode->i_lock);
return status;
}
+EXPORT_SYMBOL_GPL(nfs_post_op_update_inode_force_wcc);
/*
* Many nfs protocol calls return the new file attributes after
@@ -1398,7 +1532,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
| NFS_INO_REVAL_FORCED);
if (fattr->valid & NFS_ATTR_FATTR_OWNER) {
- if (inode->i_uid != fattr->uid) {
+ if (!uid_eq(inode->i_uid, fattr->uid)) {
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
inode->i_uid = fattr->uid;
}
@@ -1409,7 +1543,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
| NFS_INO_REVAL_FORCED);
if (fattr->valid & NFS_ATTR_FATTR_GROUP) {
- if (inode->i_gid != fattr->gid) {
+ if (!gid_eq(inode->i_gid, fattr->gid)) {
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
inode->i_gid = fattr->gid;
}
@@ -1440,7 +1574,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
inode->i_blocks = fattr->du.nfs2.blocks;
/* Update attrtimeo value if we're out of the unstable period */
- if (invalid & NFS_INO_INVALID_ATTR) {
+ if (invalid & (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_LABEL)) {
nfs_inc_stats(inode, NFSIOS_ATTRINVALIDATE);
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
nfsi->attrtimeo_timestamp = now;
@@ -1453,14 +1587,18 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
}
}
invalid &= ~NFS_INO_INVALID_ATTR;
+ invalid &= ~NFS_INO_INVALID_LABEL;
/* Don't invalidate the data if we were to blame */
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
|| S_ISLNK(inode->i_mode)))
invalid &= ~NFS_INO_INVALID_DATA;
- if (!nfs_have_delegation(inode, FMODE_READ) ||
+ if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ) ||
(save_cache_validity & NFS_INO_REVAL_FORCED))
nfsi->cache_validity |= invalid;
+ if (invalid & NFS_INO_INVALID_DATA)
+ nfs_fscache_invalidate(inode);
+
return 0;
out_err:
/*
@@ -1472,27 +1610,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
return -ESTALE;
}
-
-#ifdef CONFIG_NFS_V4
-
-/*
- * Clean out any remaining NFSv4 state that might be left over due
- * to open() calls that passed nfs_atomic_lookup, but failed to call
- * nfs_open().
- */
-void nfs4_evict_inode(struct inode *inode)
-{
- truncate_inode_pages(&inode->i_data, 0);
- clear_inode(inode);
- pnfs_return_layout(inode);
- pnfs_destroy_layout(NFS_I(inode));
- /* If we are holding a delegation, return it! */
- nfs_inode_return_delegation_noreclaim(inode);
- /* First call standard NFS clear_inode() code */
- nfs_clear_inode(inode);
-}
-#endif
-
struct inode *nfs_alloc_inode(struct super_block *sb)
{
struct nfs_inode *nfsi;
@@ -1505,11 +1622,12 @@ struct inode *nfs_alloc_inode(struct super_block *sb)
nfsi->acl_access = ERR_PTR(-EAGAIN);
nfsi->acl_default = ERR_PTR(-EAGAIN);
#endif
-#ifdef CONFIG_NFS_V4
+#if IS_ENABLED(CONFIG_NFS_V4)
nfsi->nfs4_acl = NULL;
#endif /* CONFIG_NFS_V4 */
return &nfsi->vfs_inode;
}
+EXPORT_SYMBOL_GPL(nfs_alloc_inode);
static void nfs_i_callback(struct rcu_head *head)
{
@@ -1521,10 +1639,11 @@ void nfs_destroy_inode(struct inode *inode)
{
call_rcu(&inode->i_rcu, nfs_i_callback);
}
+EXPORT_SYMBOL_GPL(nfs_destroy_inode);
static inline void nfs4_init_once(struct nfs_inode *nfsi)
{
-#ifdef CONFIG_NFS_V4
+#if IS_ENABLED(CONFIG_NFS_V4)
INIT_LIST_HEAD(&nfsi->open_states);
nfsi->delegation = NULL;
nfsi->delegation_state = 0;
@@ -1566,10 +1685,16 @@ static int __init nfs_init_inodecache(void)
static void nfs_destroy_inodecache(void)
{
+ /*
+ * Make sure all delayed rcu free inodes are flushed before we
+ * destroy cache.
+ */
+ rcu_barrier();
kmem_cache_destroy(nfs_inode_cachep);
}
struct workqueue_struct *nfsiod_workqueue;
+EXPORT_SYMBOL_GPL(nfsiod_workqueue);
/*
* start up the nfsiod workqueue
@@ -1605,12 +1730,11 @@ EXPORT_SYMBOL_GPL(nfs_net_id);
static int nfs_net_init(struct net *net)
{
nfs_clients_init(net);
- return nfs_dns_resolver_cache_init(net);
+ return 0;
}
static void nfs_net_exit(struct net *net)
{
- nfs_dns_resolver_cache_destroy(net);
nfs_cleanup_cb_ident_idr(net);
}
@@ -1628,82 +1752,71 @@ static int __init init_nfs_fs(void)
{
int err;
- err = nfs_idmap_init();
- if (err < 0)
- goto out10;
-
- err = nfs_dns_resolver_init();
- if (err < 0)
- goto out9;
-
err = register_pernet_subsys(&nfs_net_ops);
if (err < 0)
- goto out8;
+ goto out9;
err = nfs_fscache_register();
if (err < 0)
- goto out7;
+ goto out8;
err = nfsiod_start();
if (err)
- goto out6;
+ goto out7;
err = nfs_fs_proc_init();
if (err)
- goto out5;
+ goto out6;
err = nfs_init_nfspagecache();
if (err)
- goto out4;
+ goto out5;
err = nfs_init_inodecache();
if (err)
- goto out3;
+ goto out4;
err = nfs_init_readpagecache();
if (err)
- goto out2;
+ goto out3;
err = nfs_init_writepagecache();
if (err)
- goto out1;
+ goto out2;
err = nfs_init_directcache();
if (err)
- goto out0;
+ goto out1;
#ifdef CONFIG_PROC_FS
rpc_proc_register(&init_net, &nfs_rpcstat);
#endif
if ((err = register_nfs_fs()) != 0)
- goto out;
+ goto out0;
+
return 0;
-out:
+out0:
#ifdef CONFIG_PROC_FS
rpc_proc_unregister(&init_net, "nfs");
#endif
nfs_destroy_directcache();
-out0:
- nfs_destroy_writepagecache();
out1:
- nfs_destroy_readpagecache();
+ nfs_destroy_writepagecache();
out2:
- nfs_destroy_inodecache();
+ nfs_destroy_readpagecache();
out3:
- nfs_destroy_nfspagecache();
+ nfs_destroy_inodecache();
out4:
- nfs_fs_proc_exit();
+ nfs_destroy_nfspagecache();
out5:
- nfsiod_stop();
+ nfs_fs_proc_exit();
out6:
- nfs_fscache_unregister();
+ nfsiod_stop();
out7:
- unregister_pernet_subsys(&nfs_net_ops);
+ nfs_fscache_unregister();
out8:
- nfs_dns_resolver_destroy();
+ unregister_pernet_subsys(&nfs_net_ops);
out9:
- nfs_idmap_quit();
-out10:
return err;
}
@@ -1716,8 +1829,6 @@ static void __exit exit_nfs_fs(void)
nfs_destroy_nfspagecache();
nfs_fscache_unregister();
unregister_pernet_subsys(&nfs_net_ops);
- nfs_dns_resolver_destroy();
- nfs_idmap_quit();
#ifdef CONFIG_PROC_FS
rpc_proc_unregister(&init_net, "nfs");
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 12:47:59 +0000