diff options
Diffstat (limited to 'fs/nfs/dir.c')
| -rw-r--r-- | fs/nfs/dir.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 8789210c6905..a0daac7ad508 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1103,7 +1103,7 @@ static int nfs_lookup_revalidate(struct dentry *dentry, struct nameidata *nd) struct nfs_fattr *fattr = NULL; int error; - if (nd->flags & LOOKUP_RCU) + if (nd && (nd->flags & LOOKUP_RCU)) return -ECHILD; parent = dget_parent(dentry); @@ -1219,11 +1219,14 @@ 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); } @@ -1238,8 +1241,8 @@ 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); } @@ -1502,7 +1505,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd) struct iattr attr; int openflags, ret = 0; - if (nd->flags & LOOKUP_RCU) + if (nd && (nd->flags & LOOKUP_RCU)) return -ECHILD; inode = dentry->d_inode; @@ -1800,10 +1803,8 @@ static int nfs_safe_remove(struct dentry *dentry) if (inode != NULL) { nfs_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) |