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| author | Vivek Goyal <vgoyal@redhat.com> | 2011-03-09 08:27:37 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-03-10 08:52:27 +0100 |
| commit | 69d60eb96ae8a73cf9b79cf28051caf973006011 (patch) | |
| tree | 254be7302abbd6a21d4f54cfdad6a0af6db282d0 | |
| parent | 721a9602e6607417c6bc15b18e97a2f35266c690 (diff) | |
| download | linux-3.10-69d60eb96ae8a73cf9b79cf28051caf973006011.tar.gz linux-3.10-69d60eb96ae8a73cf9b79cf28051caf973006011.tar.bz2 linux-3.10-69d60eb96ae8a73cf9b79cf28051caf973006011.zip | |
blk-throttle: Use blk_plug in throttle dispatch
Use plug in throttle dispatch also as we are dispatching a bunch of
bios in throttle context and some of them might merge.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| -rw-r--r-- | block/blk-throttle.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c index b8dcdc2663a..658ee505315 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -770,6 +770,7 @@ static int throtl_dispatch(struct request_queue *q) unsigned int nr_disp = 0; struct bio_list bio_list_on_stack; struct bio *bio; + struct blk_plug plug; spin_lock_irq(q->queue_lock); @@ -798,8 +799,10 @@ out: * immediate dispatch */ if (nr_disp) { + blk_start_plug(&plug); while((bio = bio_list_pop(&bio_list_on_stack))) generic_make_request(bio); + blk_finish_plug(&plug); } return nr_disp; } |