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cifs: force interface update before a fresh session setup 

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@vger.kernel.org
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shyam Prasad N 2023-10-30 11:00:11 +00:00 committed by Greg Kroah-Hartman
parent e42c5730c1
commit aabf4851d1
1 changed files with 5 additions and 1 deletions
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6
fs/smb/client/connect.c
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@ -3850,8 +3850,12 @@ cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
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 */