diff options
| author | Jeff Layton <jlayton@redhat.com> | 2011-03-14 13:48:08 -0400 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2011-04-28 08:21:02 -0700 |
| commit | 0696d0df97fc59f0de7ba8fca98f4f47d62acd4e (patch) | |
| tree | 50af400a85a21dfde4e9d00e1efaae5152f65c57 /fs | |
| parent | c797893cd1108165fcd7dac1d0954fcc5b6e6ec6 (diff) | |
cifs: always do is_path_accessible check in cifs_mount
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 <ysharma@cymer.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/connect.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index fa1039a7ac40..50d60cc80ce8 100644 --- a/fs/cifs/connect.c +++ b/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) { |