diff options
| -rw-r--r-- | fs/nfs/dir.c | 15 | ||||
| -rw-r--r-- | fs/nfs/inode.c | 6 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 2 | ||||
| -rw-r--r-- | include/linux/nfs_fs.h | 1 |
4 files changed, 21 insertions, 3 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 32c666c612a1..72d141a0dbd8 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -638,6 +638,21 @@ static int nfs_fsync_dir(struct file *filp, struct dentry *dentry, int datasync) return 0; } +/** + * nfs_force_lookup_revalidate - Mark the directory as having changed + * @dir - pointer to directory inode + * + * This forces the revalidation code in nfs_lookup_revalidate() to do a + * full lookup on all child dentries of 'dir' whenever a change occurs + * on the server that might have invalidated our dcache. + * + * The caller should be holding dir->i_lock + */ +void nfs_force_lookup_revalidate(struct inode *dir) +{ + NFS_I(dir)->cache_change_attribute = jiffies; +} + /* * A check for whether or not the parent directory has changed. * In the case it has, we assume that the dentries are untrustworthy diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index cc3a09db41a9..5747d49bdd76 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1029,7 +1029,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) dprintk("NFS: mtime change on server for file %s/%ld\n", inode->i_sb->s_id, inode->i_ino); invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA; - nfsi->cache_change_attribute = now; + if (S_ISDIR(inode->i_mode)) + nfs_force_lookup_revalidate(inode); } /* If ctime has changed we should definitely clear access+acl caches */ if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) @@ -1038,7 +1039,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) dprintk("NFS: change_attr change on server for file %s/%ld\n", inode->i_sb->s_id, inode->i_ino); invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; - nfsi->cache_change_attribute = now; + if (S_ISDIR(inode->i_mode)) + nfs_force_lookup_revalidate(inode); } /* Check if our cached file size is stale */ diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 826b445b8c70..26192a703129 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -210,7 +210,7 @@ static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo) spin_lock(&dir->i_lock); nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA; if (!cinfo->atomic || cinfo->before != nfsi->change_attr) - nfsi->cache_change_attribute = jiffies; + nfs_force_lookup_revalidate(dir); nfsi->change_attr = cinfo->after; spin_unlock(&dir->i_lock); } diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 2d15d4aac094..7095aaa087d8 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -366,6 +366,7 @@ extern const struct inode_operations nfs3_dir_inode_operations; extern const struct file_operations nfs_dir_operations; extern struct dentry_operations nfs_dentry_operations; +extern void nfs_force_lookup_revalidate(struct inode *dir); extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr); extern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags); extern void nfs_access_zap_cache(struct inode *inode); |