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| author | Ming Lei <ming.lei@redhat.com> | 2018-10-29 20:57:19 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-11-09 06:23:18 -0700 |
| commit | 34ffec60b27aa81d04e274e71e4c6ef740f75fc7 (patch) | |
| tree | 242e7545cc12a3db2cba1831e21280955808c5b8 | |
| parent | ba5d73851e71847ba7f7f4c27a1a6e1f5ab91c79 (diff) | |
| download | linux-34ffec60b27aa81d04e274e71e4c6ef740f75fc7.tar.bz2 | |
block: make sure writesame bio is aligned with logical block size
Obviously the created writesame bio has to be aligned with logical block
size, and use bio_allowed_max_sectors() to retrieve this number.
Cc: stable@vger.kernel.org
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Xiao Ni <xni@redhat.com>
Cc: Mariusz Dabrowski <mariusz.dabrowski@intel.com>
Fixes: b49a0871be31a745b2ef ("block: remove split code in blkdev_issue_{discard,write_same}")
Tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-lib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-lib.c b/block/blk-lib.c index d58d5d87dd88..e8b3bb9bf375 100644 --- a/block/blk-lib.c +++ b/block/blk-lib.c @@ -149,7 +149,7 @@ static int __blkdev_issue_write_same(struct block_device *bdev, sector_t sector, return -EOPNOTSUPP; /* Ensure that max_write_same_sectors doesn't overflow bi_size */ - max_write_same_sectors = UINT_MAX >> 9; + max_write_same_sectors = bio_allowed_max_sectors(q); while (nr_sects) { bio = blk_next_bio(bio, 1, gfp_mask); |