3.16.80-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit 1f08529c84cfecaf1261ed9b7e17fab18541c58f upstream.
We should not play with dcache without parent locked...
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
[bwh: Backported to 3.16:
- Test ceph_mds_request::r_locked_dir
- Adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
fs/ceph/inode.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1260,6 +1260,7 @@ retry_lookup:
req->r_request_started);
dout(" final dn %p\n", dn);
} else if (!req->r_aborted &&
+ req->r_locked_dir &&
(req->r_op == CEPH_MDS_OP_LOOKUPSNAP ||
req->r_op == CEPH_MDS_OP_MKSNAP)) {
struct dentry *dn = req->r_dentry;
