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authorChristoph Hellwig <hch@lst.de>2017-04-05 20:21:03 +0300
committerJens Axboe <axboe@fb.com>2017-04-08 20:25:38 +0300
commit3deff1a70d5901342f460f8cc36e5d0c5d51c319 (patch)
treea74cc58c2a3105a9505028c87f8991378979e33c /drivers/md/raid0.c
parent02d261034f1c90ac8b052406bd7b18d2564b0b3c (diff)
downloadlinux-3deff1a70d5901342f460f8cc36e5d0c5d51c319.tar.xz
md: support REQ_OP_WRITE_ZEROES
Copy & paste from the REQ_OP_WRITE_SAME code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/raid0.c')
-rw-r--r--drivers/md/raid0.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 93347ca7c7a6..ce7a6a56cf73 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -383,6 +383,7 @@ static int raid0_run(struct mddev *mddev)
blk_queue_max_hw_sectors(mddev->queue, mddev->chunk_sectors);
blk_queue_max_write_same_sectors(mddev->queue, mddev->chunk_sectors);
+ blk_queue_max_write_zeroes_sectors(mddev->queue, mddev->chunk_sectors);
blk_queue_max_discard_sectors(mddev->queue, mddev->chunk_sectors);
blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9);
@@ -504,6 +505,7 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio)
split, disk_devt(mddev->gendisk),
bio_sector);
mddev_check_writesame(mddev, split);
+ mddev_check_write_zeroes(mddev, split);
generic_make_request(split);
}
} while (split != bio);