blk-mq: support at_head inserations for blk_execute_rq
authorChristoph Hellwig <hch@infradead.org>
Fri, 7 Feb 2014 18:22:36 +0000 (10:22 -0800)
committerJens Axboe <axboe@fb.com>
Fri, 7 Feb 2014 18:58:54 +0000 (11:58 -0700)
commit72a0a36e2854a6eadb4cf2561858f613f9cd4639
tree26679a518f6e06640fd34a04fcff733450ef15e3
parent96d2e8b5e288e9d2a40b95161b855944846526a5
blk-mq: support at_head inserations for blk_execute_rq

This is neede for proper SG_IO operation as well as various uses of
blk_execute_rq from the SCSI midlayer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-exec.c
block/blk-mq.c
include/linux/blk-mq.h