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authorJens Axboe <axboe@fb.com>2014-06-04 10:23:49 -0600
committerJens Axboe <axboe@fb.com>2014-06-04 10:23:49 -0600
commit0e62f51f8753b048f391ee2d7f2af1f7297b0be5 (patch)
tree3cd2ad45a7f0cb9e97995e57be61432e9f0d34d3 /drivers/block/mtip32xx
parentf899fed4421d6b098ed6a9d69303c70e590bf2c0 (diff)
downloadblackbird-op-linux-0e62f51f8753b048f391ee2d7f2af1f7297b0be5.tar.gz
blackbird-op-linux-0e62f51f8753b048f391ee2d7f2af1f7297b0be5.zip
blk-mq: let blk_mq_tag_to_rq() take blk_mq_tags as the main parameter
We currently pass in the hardware queue, and get the tags from there. But from scsi-mq, with a shared tag space, it's a lot more convenient to pass in the blk_mq_tags instead as the hardware queue isn't always directly available. So instead of having to re-map to a given hardware queue from rq->mq_ctx, just pass in the tags structure. Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/mtip32xx')
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index abc858b3528b..74abd49fabdc 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -193,7 +193,9 @@ static void mtip_put_int_command(struct driver_data *dd, struct mtip_cmd *cmd)
static struct request *mtip_rq_from_tag(struct driver_data *dd,
unsigned int tag)
{
- return blk_mq_tag_to_rq(dd->queue->queue_hw_ctx[0], tag);
+ struct blk_mq_hw_ctx *hctx = dd->queue->queue_hw_ctx[0];
+
+ return blk_mq_tag_to_rq(hctx->tags, tag);
}
static struct mtip_cmd *mtip_cmd_from_tag(struct driver_data *dd,
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