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Commit bdd646a4 authored by Nick Piggin's avatar Nick Piggin Committed by Linus Torvalds
Browse files

[PATCH] blk: unplug later 



get_request_wait needn't unplug the device immediately.

Signed-off-by: default avatarNick Piggin <nickpiggin@yahoo.com.au>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent fde6ad22

drivers/block/ll_rw_blk.c

+1 −1
Original line number Diff line number Diff line
@@ -1969,7 +1969,6 @@ static struct request *get_request_wait(request_queue_t *q, int rw) 
	DEFINE_WAIT(wait);

	struct request *rq;



	generic_unplug_device(q);

	do {

		struct request_list *rl = &q->rq;
@@ -1981,6 +1980,7 @@ static struct request *get_request_wait(request_queue_t *q, int rw) 
		if (!rq) {

			struct io_context *ioc;



			generic_unplug_device(q);

			io_schedule();



			/*