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| author | Christoph Hellwig <hch@lst.de> | 2017-04-05 20:21:03 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-08 20:25:38 +0300 |
| commit | 3deff1a70d5901342f460f8cc36e5d0c5d51c319 (patch) | |
| tree | a74cc58c2a3105a9505028c87f8991378979e33c /drivers/md/md.h | |
| parent | 02d261034f1c90ac8b052406bd7b18d2564b0b3c (diff) | |
| download | linux-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/md.h')
| -rw-r--r-- | drivers/md/md.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index dde8ecb760c8..1e76d64ce180 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -709,4 +709,11 @@ static inline void mddev_check_writesame(struct mddev *mddev, struct bio *bio) !bdev_get_queue(bio->bi_bdev)->limits.max_write_same_sectors) mddev->queue->limits.max_write_same_sectors = 0; } + +static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio) +{ + if (bio_op(bio) == REQ_OP_WRITE_ZEROES && + !bdev_get_queue(bio->bi_bdev)->limits.max_write_zeroes_sectors) + mddev->queue->limits.max_write_zeroes_sectors = 0; +} #endif /* _MD_MD_H */ |