afs: add afs_wq and use it instead of the system workqueue

flush_scheduled_work() is going away.  afs needs to make sure all the
works it has queued have finished before being unloaded and there can
be arbitrary number of pending works.  Add afs_wq and use it as the
flush domain instead of the system workqueue.

Also, convert cancel_delayed_work() + flush_scheduled_work() to
cancel_delayed_work_sync() in afs_mntpt_kill_timer().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: linux-afs@lists.infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index 654d8fdbf01f..e45a323aebb4 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -410,7 +410,7 @@ static void afs_rx_interceptor(struct sock *sk, unsigned long user_call_ID,
         if (!call) {
                 /* its an incoming call for our callback service */
                 skb_queue_tail(&afs_incoming_calls, skb);
-                schedule_work(&afs_collect_incoming_call_work);
+                queue_work(afs_wq, &afs_collect_incoming_call_work);
         } else {
                 /* route the messages directly to the appropriate call */
                 skb_queue_tail(&call->rx_queue, skb);