Commit deed62ed authored by Nick Piggin's avatar Nick Piggin Committed by Jens Axboe
Browse files

writeback: remove smp_mb(), it's not needed with list_add_tail_rcu()



list_add_tail_rcu contains required barriers.
Signed-off-by: default avatarNick Piggin <npiggin@suse.de>
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 49db0414
......@@ -151,10 +151,10 @@ static void bdi_queue_work(struct backing_dev_info *bdi, struct bdi_work *work)
BUG_ON(!bdi->wb_cnt);
/*
* Make sure stores are seen before it appears on the list
* list_add_tail_rcu() contains the necessary barriers to
* make sure the above stores are seen before the item is
* noticed on the list
*/
smp_mb();
spin_lock(&bdi->wb_lock);
list_add_tail_rcu(&work->list, &bdi->work_list);
spin_unlock(&bdi->wb_lock);
......
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment