1 files changed, 12 insertions, 1 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 4133ef5264e5..b34cd16f472f 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -935,8 +935,17 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
 
 no_entry:
         res = d_materialise_unique(dentry, inode);
-        if (res != NULL)
+        if (res != NULL) {
+                struct dentry *parent;
+                if (IS_ERR(res))
+                        goto out_unlock;
+                /* Was a directory renamed! */
+                parent = dget_parent(res);
+                if (!IS_ROOT(parent))
+                        nfs_mark_for_revalidate(parent->d_inode);
+                dput(parent);
                 dentry = res;
+        }
         nfs_renew_times(dentry);
         nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
 out_unlock:
@@ -1132,6 +1141,8 @@ static struct dentry *nfs_readdir_lookup(nfs_readdir_descriptor_t *desc)
         alias = d_materialise_unique(dentry, inode);
         if (alias != NULL) {
                 dput(dentry);
+                if (IS_ERR(alias))
+                        return NULL;
                 dentry = alias;
         }