This is a note to let you know that I've just added the patch titled
cifs: force interface update before a fresh session setup
to the 6.6-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-force-interface-update-before-a-fresh-session-setup.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d9a6d78096056a3cb5c5f07a730ab92f2f9ac4e6 Mon Sep 17 00:00:00 2001
From: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
Date: Mon, 30 Oct 2023 11:00:11 +0000
Subject: cifs: force interface update before a fresh session setup
From: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
commit d9a6d78096056a3cb5c5f07a730ab92f2f9ac4e6 upstream.
During a session reconnect, it is possible that the
server moved to another physical server (happens in case
of Azure files). So at this time, force a query of server
interfaces again (in case of multichannel session), such
that the secondary channels connect to the right
IP addresses (possibly updated now).
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/smb/client/connect.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -3850,8 +3850,12 @@ cifs_setup_session(const unsigned int xi
is_binding = !CIFS_ALL_CHANS_NEED_RECONNECT(ses);
spin_unlock(&ses->chan_lock);
- if (!is_binding)
+ if (!is_binding) {
ses->ses_status = SES_IN_SETUP;
+
+ /* force iface_list refresh */
+ ses->iface_last_update = 0;
+ }
spin_unlock(&ses->ses_lock);
/* update ses ip_addr only for primary chan */
Patches currently in stable-queue which might be from sprasad@xxxxxxxxxxxxx are
queue-6.6/cifs-reconnect-helper-should-set-reconnect-for-the-right-channel.patch
queue-6.6/cifs-do-not-reset-chan_max-if-multichannel-is-not-supported-at-mount.patch
queue-6.6/smb3-allow-dumping-session-and-tcon-id-to-improve-stats-analysis-and-debugging.patch
queue-6.6/cifs-force-interface-update-before-a-fresh-session-setup.patch
queue-6.6/cifs-do-not-pass-cifs_sb-when-trying-to-add-channels.patch
