1 files changed, 6 insertions, 1 deletions

diff --git a/fs/dcache.c b/fs/dcache.c
index 361882a14ccb..a39fe47c466f 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -296,8 +296,12 @@ static struct dentry *d_kill(struct dentry *dentry, struct dentry *parent)
         __releases(parent->d_lock)
         __releases(dentry->d_inode->i_lock)
 {
-        dentry->d_parent = NULL;
         list_del(&dentry->d_u.d_child);
+        /*
+         * Inform try_to_ascend() that we are no longer attached to the
+         * dentry tree
+         */
+        dentry->d_flags |= DCACHE_DISCONNECTED;
         if (parent)
                 spin_unlock(&parent->d_lock);
         dentry_iput(dentry);
@@ -1030,6 +1034,7 @@ static struct dentry *try_to_ascend(struct dentry *old, int locked, unsigned seq
          * or deletion
          */
         if (new != old->d_parent ||
+                 (old->d_flags & DCACHE_DISCONNECTED) ||
                  (!locked && read_seqretry(&rename_lock, seq))) {
                 spin_unlock(&new->d_lock);
                 new = NULL;