| Message ID | 20181026062435.21398-4-ming.lei@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | block: make sure discard/writesame bio is aligned with logical block size | expand |
diff --git a/block/blk-lib.c b/block/blk-lib.c index 93011785f710..1750f0e480c0 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 = (UINT_MAX >> 9) & ~bs_mask; while (nr_sects) { bio = next_bio(bio, 1, gfp_mask);
Obviously the created writesame bio has to be aligned with logical block size. Fixes: b49a0871be31a745b2ef ("block: remove split code in blkdev_issue_{discard,write_same}") Cc: Rui Salvaterra <rsalvaterra@gmail.com> 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> Signed-off-by: Ming Lei <ming.lei@redhat.com> --- block/blk-lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)