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fs: dlm: synchronize dlm before shutdown

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This patch moves the dlm workqueue dlm synchronization before shutdown
handling. The patch just flushes all pending work before starting to
shutdown the connection. At least for the send_workqeue we should flush
the workqueue to make sure there is no new connection handling going on
as dlm_allow_conn switch is turned to false before.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring 2020-08-27 15:02:48 -04:00 committed by David Teigland
parent d012a7190f
commit aa7ab1e208
1 changed files with 6 additions and 4 deletions
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10
fs/dlm/lowcomms.c
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@ -1624,10 +1624,6 @@ static void work_flush(void)
struct hlist_node *n;
struct connection *con;
if (recv_workqueue)
flush_workqueue(recv_workqueue);
if (send_workqueue)
flush_workqueue(send_workqueue);
do {
ok = 1;
foreach_conn(stop_conn);
@ -1659,6 +1655,12 @@ void dlm_lowcomms_stop(void)
mutex_lock(&connections_lock);
dlm_allow_conn = 0;
mutex_unlock(&connections_lock);
if (recv_workqueue)
flush_workqueue(recv_workqueue);
if (send_workqueue)
flush_workqueue(send_workqueue);
foreach_conn(shutdown_conn);
work_flush();
clean_writequeues();