Fix bug in blk_rq_merge_ok
authorWenbo Wang <wenbo.wang@memblaze.com>
Fri, 20 Mar 2015 05:04:54 +0000 (01:04 -0400)
committerJens Axboe <axboe@fb.com>
Mon, 30 Mar 2015 18:54:58 +0000 (12:54 -0600)
commit9dc7acf1f18942fef5d12bc4a2fd52913a86ec2d
tree51efb4784527b06758fcb2a4e1487da985da3e69
parentac165e5e12e4eac9123d018311c278c974cf9093
Fix bug in blk_rq_merge_ok

Use the right array index to reference the last
element of rq->biotail->bi_io_vec[]

Signed-off-by: Wenbo Wang <wenbo.wang@memblaze.com>
Reviewed-by: Chong Yuan <chong.yuan@memblaze.com>
Fixes: 66cb45aa41315 ("block: add support for limiting gaps in SG lists")
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-merge.c