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>
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index 6153417..e83c033 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -268,8 +268,8 @@
path_put(&nd->path);
nd->path.mnt = newmnt;
nd->path.dentry = dget(newmnt->mnt_root);
- schedule_delayed_work(&afs_mntpt_expiry_timer,
- afs_mntpt_expiry_timeout * HZ);
+ queue_delayed_work(afs_wq, &afs_mntpt_expiry_timer,
+ afs_mntpt_expiry_timeout * HZ);
break;
case -EBUSY:
/* someone else made a mount here whilst we were busy */
@@ -295,8 +295,8 @@
if (!list_empty(&afs_vfsmounts)) {
mark_mounts_for_expiry(&afs_vfsmounts);
- schedule_delayed_work(&afs_mntpt_expiry_timer,
- afs_mntpt_expiry_timeout * HZ);
+ queue_delayed_work(afs_wq, &afs_mntpt_expiry_timer,
+ afs_mntpt_expiry_timeout * HZ);
}
_leave("");
@@ -310,6 +310,5 @@
_enter("");
ASSERT(list_empty(&afs_vfsmounts));
- cancel_delayed_work(&afs_mntpt_expiry_timer);
- flush_scheduled_work();
+ cancel_delayed_work_sync(&afs_mntpt_expiry_timer);
}