Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 783660b2 authored Jan 19, 2007 by Jens Axboe Committed by Jens Axboe Feb 11, 2007

elevator: don't sort reads between writes



Don't allow elv_dispatch_sort() to mix reads and writes together,
it's rarely a good idea.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

parent cad97516

block/elevator.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -413,6 +413,8 @@ void elv_dispatch_sort(request_queue_t q, struct request rq)
		list_for_each_prev(entry, &q->queue_head) {
		struct request *pos = list_entry_rq(entry);

		if (rq_data_dir(rq) != rq_data_dir(pos))
		break;
		if (pos->cmd_flags & (REQ_SOFTBARRIER\|REQ_HARDBARRIER\|REQ_STARTED))
		break;
		if (rq->sector >= boundary) {