This is a note to let you know that I've just added the patch titled
cifs: fix issue mounting of DFS ROOT when redirecting from one domain
controller to the next
to the 3.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cifs-fix-issue-mounting-of-dfs-root-when-redirecting-from-one-domain-controller-to-the-next.patch
and it can be found in the queue-3.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 1daaae8fa4afe3df78ca34e724ed7e8187e4eb32 Mon Sep 17 00:00:00 2001
From: Jeff Layton <[email protected]>
Date: Wed, 21 Mar 2012 06:30:40 -0400
Subject: cifs: fix issue mounting of DFS ROOT when redirecting from one domain
controller to the next
From: Jeff Layton <[email protected]>
commit 1daaae8fa4afe3df78ca34e724ed7e8187e4eb32 upstream.
This patch fixes an issue when cifs_mount receives a
STATUS_BAD_NETWORK_NAME error during cifs_get_tcon but is able to
continue after an DFS ROOT referral. In this case, the return code
variable is not reset prior to trying to mount from the system referred
to. Thus, is_path_accessible is not executed and the final DFS referral
is not performed causing a mount error.
Use case: In DNS, example.com resolves to the secondary AD server
ad2.example.com Our primary domain controller is ad1.example.com and has
a DFS redirection set up from \\ad1\share\Users to \\files\share\Users.
Mounting \\example.com\share\Users fails.
Regression introduced by commit 724d9f1.
Reviewed-by: Pavel Shilovsky <[email protected]
Signed-off-by: Thomas Hadig <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Steve French <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/cifs/connect.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3368,7 +3368,7 @@ cifs_ra_pages(struct cifs_sb_info *cifs_
int
cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *volume_info)
{
- int rc = 0;
+ int rc;
int xid;
struct cifs_ses *pSesInfo;
struct cifs_tcon *tcon;
@@ -3395,6 +3395,7 @@ try_mount_again:
FreeXid(xid);
}
#endif
+ rc = 0;
tcon = NULL;
pSesInfo = NULL;
srvTcp = NULL;
Patches currently in stable-queue which might be from [email protected] are
queue-3.3/cifs-fix-issue-mounting-of-dfs-root-when-redirecting-from-one-domain-controller-to-the-next.patch
queue-3.3/cifs-fix-a-spurious-error-in-cifs_push_posix_locks.patch
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