diff options
Diffstat (limited to 'fs/nfs/dir.c')
| -rw-r--r-- | fs/nfs/dir.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 1cc71f60b491..32e6c53520e2 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -979,10 +979,11 @@ static int nfs_is_exclusive_create(struct inode *dir, unsigned int flags) * particular file and the "nocto" mount flag is not set. * */ -static inline +static int nfs_lookup_verify_inode(struct inode *inode, unsigned int flags) { struct nfs_server *server = NFS_SERVER(inode); + int ret; if (IS_AUTOMOUNT(inode)) return 0; @@ -993,9 +994,13 @@ int nfs_lookup_verify_inode(struct inode *inode, unsigned int flags) if ((flags & LOOKUP_OPEN) && !(server->flags & NFS_MOUNT_NOCTO) && (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode))) goto out_force; - return 0; +out: + return (inode->i_nlink == 0) ? -ENOENT : 0; out_force: - return __nfs_revalidate_inode(server, inode); + ret = __nfs_revalidate_inode(server, inode); + if (ret != 0) + return ret; + goto out; } /* @@ -1156,11 +1161,14 @@ static int nfs_dentry_delete(const struct dentry *dentry) } +/* Ensure that we revalidate inode->i_nlink */ static void nfs_drop_nlink(struct inode *inode) { spin_lock(&inode->i_lock); - if (inode->i_nlink > 0) - drop_nlink(inode); + /* drop the inode if we're reasonably sure this is the last link */ + if (inode->i_nlink == 1) + clear_nlink(inode); + NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ATTR; spin_unlock(&inode->i_lock); } @@ -1175,8 +1183,8 @@ static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode) NFS_I(inode)->cache_validity |= NFS_INO_INVALID_DATA; if (dentry->d_flags & DCACHE_NFSFS_RENAMED) { - drop_nlink(inode); nfs_complete_unlink(dentry, inode); + nfs_drop_nlink(inode); } iput(inode); } @@ -1647,10 +1655,8 @@ static int nfs_safe_remove(struct dentry *dentry) if (inode != NULL) { NFS_PROTO(inode)->return_delegation(inode); error = NFS_PROTO(dir)->remove(dir, &dentry->d_name); - /* The VFS may want to delete this inode */ if (error == 0) nfs_drop_nlink(inode); - nfs_mark_for_revalidate(inode); } else error = NFS_PROTO(dir)->remove(dir, &dentry->d_name); if (error == -ENOENT) |