Commit 4fcd1813e640 ("Fix reconnect to not defer smb3 session reconnect
long after socket reconnect") changes the behaviour of the SMB2 echo
service and causes it to renegotiate after a socket reconnect. However
under default settings, the echo service could take up to 120 seconds to
be scheduled.
The patch forces the echo service to be called immediately resulting a
negotiate call being made immediately on reconnect.
Signed-off-by: Sachin Prabhu <sprabhu@xxxxxxxxxx>
---
fs/cifs/connect.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index aab5227..43fd838 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -412,6 +412,9 @@ cifs_reconnect(struct TCP_Server_Info *server)
}
} while (server->tcpStatus == CifsNeedReconnect);
+ if (server->tcpStatus == CifsNeedNegotiate)
+ mod_delayed_work(cifsiod_wq, &server->echo, 0);
+
return rc;
}
@@ -421,17 +424,25 @@ cifs_echo_request(struct work_struct *work)
int rc;
struct TCP_Server_Info *server = container_of(work,
struct TCP_Server_Info, echo.work);
- unsigned long echo_interval = server->echo_interval;
+ unsigned long echo_interval;
+
+ /*
+ * If we need to renegotiate, set echo interval to zero to
+ * immediately call echo service where we can renegotiate.
+ */
+ if (server->tcpStatus == CifsNeedNegotiate)
+ echo_interval = 0;
+ else
+ echo_interval = server->echo_interval;
/*
- * We cannot send an echo if it is disabled or until the
- * NEGOTIATE_PROTOCOL request is done, which is indicated by
- * server->ops->need_neg() == true. Also, no need to ping if
- * we got a response recently.
+ * We cannot send an echo if it is disabled.
+ * Also, no need to ping if we got a response recently.
*/
if (server->tcpStatus == CifsNeedReconnect ||
- server->tcpStatus == CifsExiting || server->tcpStatus == CifsNew ||
+ server->tcpStatus == CifsExiting ||
+ server->tcpStatus == CifsNew ||
(server->ops->can_echo && !server->ops->can_echo(server)) ||
time_before(jiffies, server->lstrp + echo_interval - HZ))
goto requeue_echo;
--
2.7.4
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