1 files changed, 8 insertions, 4 deletions

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 67bbb41d5526..a1986eb52045 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -46,7 +46,7 @@ int ceph_init_dentry(struct dentry *dentry)
         else
                 dentry->d_op = &ceph_snap_dentry_ops;
 
-        di = kmem_cache_alloc(ceph_dentry_cachep, GFP_NOFS);
+        di = kmem_cache_alloc(ceph_dentry_cachep, GFP_NOFS | __GFP_ZERO);
         if (!di)
                 return -ENOMEM;          /* oh well */
 
@@ -1021,11 +1021,15 @@ out_touch:
 static void ceph_dentry_release(struct dentry *dentry)
 {
         struct ceph_dentry_info *di = ceph_dentry(dentry);
-        struct inode *parent_inode = dentry->d_parent->d_inode;
-        u64 snapid = ceph_snap(parent_inode);
+        struct inode *parent_inode = NULL;
+        u64 snapid = CEPH_NOSNAP;
 
+        if (!IS_ROOT(dentry)) {
+                parent_inode = dentry->d_parent->d_inode;
+                if (parent_inode)
+                        snapid = ceph_snap(parent_inode);
+        }
         dout("dentry_release %p parent %p\n", dentry, parent_inode);
-
         if (parent_inode && snapid != CEPH_SNAPDIR) {
                 struct ceph_inode_info *ci = ceph_inode(parent_inode);