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| author | Jeff Layton <jlayton@redhat.com> | 2011-03-14 13:48:08 -0400 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2011-04-12 00:52:08 +0000 |
| commit | 70945643722ffeac779d2529a348f99567fa5c33 (patch) | |
| tree | 8dd3beff7efb653d6cff8836fbae686d472b5499 /fs | |
| parent | 5443d130aa4990424a8e64984e64b50ec70661bb (diff) | |
| download | linux-stable-70945643722ffeac779d2529a348f99567fa5c33.tar.gz linux-stable-70945643722ffeac779d2529a348f99567fa5c33.tar.bz2 linux-stable-70945643722ffeac779d2529a348f99567fa5c33.zip | |
cifs: always do is_path_accessible check in cifs_mount
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.
Cc: stable@kernel.org
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>
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 94a05a681f84..5eacb89d4a4f 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2831,7 +2831,7 @@ 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, tcon); if (full_path == NULL) { |