2.6.35-longterm review patch. If anyone has any objections, please let me know.
------------------
From: Jeff Layton <jlay...@redhat.com>
commit 70945643722ffeac779d2529a348f99567fa5c33 upstream.
Currently, we skip doing the is_path_accessible check in cifs_mount if
there is no prefixpath. I have a report of at least one server however
that allows a TREE_CONNECT to a share that has a DFS referral at its
root. The reporter in this case was using a UNC that had no prefixpath,
so the is_path_accessible check was not triggered and the box later hit
a BUG() because we were chasing a DFS referral on the root dentry for
the mount.
This patch fixes this by removing the check for a zero-length
prefixpath. That should make the is_path_accessible check be done in
this situation and should allow the client to chase the DFS referral at
mount time instead.
Reported-and-Tested-by: Yogesh Sharma <ysha...@cymer.com>
Signed-off-by: Jeff Layton <jlay...@redhat.com>
Signed-off-by: Steve French <sfre...@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
fs/cifs/connect.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6.35.y/fs/cifs/connect.c
===================================================================
--- linux-2.6.35.y.orig/fs/cifs/connect.c
+++ linux-2.6.35.y/fs/cifs/connect.c
@@ -2606,7 +2606,7 @@ try_mount_again:
remote_path_check:
/* check if a whole path (including prepath) is not remote */
- if (!rc && cifs_sb->prepathlen && tcon) {
+ if (!rc && tcon) {
/* build_path_to_root works only when we have a valid tcon */
full_path = cifs_build_path_to_root(cifs_sb);
if (full_path == NULL) {
_______________________________________________
stable mailing list
stable@linux.kernel.org
http://linux.kernel.org/mailman/listinfo/stable
