This is a note to let you know that I've just added the patch titled
CIFS: reconnect thread reschedule itself
to the 4.9-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-reconnect-thread-reschedule-itself.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 18ea43113f5b74a97dd4be9bddbac10d68b1a6ce Mon Sep 17 00:00:00 2001
From: Germano Percossi <germano.percossi@xxxxxxxxxx>
Date: Fri, 7 Apr 2017 12:29:36 +0100
Subject: CIFS: reconnect thread reschedule itself
From: Germano Percossi <germano.percossi@xxxxxxxxxx>
commit 18ea43113f5b74a97dd4be9bddbac10d68b1a6ce upstream.
In case of error, smb2_reconnect_server reschedule itself
with a delay, to avoid being too aggressive.
Signed-off-by: Germano Percossi <germano.percossi@xxxxxxxxxx>
Reviewed-by: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx>
Signed-off-by: Steve French <smfrench@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/cifs/smb2pdu.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1987,6 +1987,9 @@ void smb2_reconnect_server(struct work_s
struct cifs_tcon *tcon, *tcon2;
struct list_head tmp_list;
int tcon_exist = false;
+ int rc;
+ int resched = false;
+
/* Prevent simultaneous reconnects that can corrupt tcon->rlist list */
mutex_lock(&server->reconnect_mutex);
@@ -2014,13 +2017,18 @@ void smb2_reconnect_server(struct work_s
spin_unlock(&cifs_tcp_ses_lock);
list_for_each_entry_safe(tcon, tcon2, &tmp_list, rlist) {
- if (!smb2_reconnect(SMB2_INTERNAL_CMD, tcon))
+ rc = smb2_reconnect(SMB2_INTERNAL_CMD, tcon);
+ if (!rc)
cifs_reopen_persistent_handles(tcon);
+ else
+ resched = true;
list_del_init(&tcon->rlist);
cifs_put_tcon(tcon);
}
cifs_dbg(FYI, "Reconnecting tcons finished\n");
+ if (resched)
+ queue_delayed_work(cifsiod_wq, &server->reconnect, 2 * HZ);
mutex_unlock(&server->reconnect_mutex);
/* now we can safely release srv struct */
Patches currently in stable-queue which might be from germano.percossi@xxxxxxxxxx are
queue-4.9/cifs-reconnect-thread-reschedule-itself.patch
queue-4.9/cifs-store-results-of-cifs_reopen_file-to-avoid-infinite-wait.patch