[PATCH 05/14] cifs: force interface update before a fresh session setup

nspmangalore
2023-10-30T11:00:43Z

From: Shyam Prasad N <sprasad@microsoft.com>

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).

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
---
fs/smb/client/connect.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index c993c7a3415a..97c9a32cff36 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -3854,8 +3854,12 @@ 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 */
--
2.34.1