commit 4310864b9d17714e64446bfb8bc7dbcb96454475
author Oleg Nesterov <oleg@tv-sign.ru> Tue Oct 23 15:08:18 2007 +0200
committer Jens Axboe <jens.axboe@oracle.com> Mon Oct 29 11:33:05 2007 +0100
tree b3a1efec204dc7eeb05ccdb28a954efe6ec8f621
parent b238b3d4be04d3acf1f86ff8ad0b0e803def67ff

cfq_exit_queue() should cancel cfq_data->unplug_work

Spotted by Nick <gentuu@gmail.com>, perhaps explains the first trace in
http://bugzilla.kernel.org/show_bug.cgi?id=9180.

cfq_exit_queue() should cancel cfqd->unplug_work before freeing cfqd.
blk_sync_queue() seems unneeded, removed.

Q: why cfq_exit_queue() calls cfq_shutdown_timer_wq() twice?

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>