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blk-mq: update ->init_request and ->exit_request prototypes

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Remove the request_idx parameter, which can't be used safely now that we
support I/O schedulers with blk-mq.  Except for a superflous check in
mtip32xx it was unused anyway.

Also pass the tag_set instead of just the driver data - this allows drivers
to avoid some code duplication in a follow on cleanup.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig
2017-05-01 10:19:08 -06:00
committed by Jens Axboe
parent a800ce8ba5
commit d6296d39e9
14 changed files with 74 additions and 99 deletions
Download Patch File Download Diff File Expand all files Collapse all files
block/blk-mq.c
+5 -13
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@@ -1655,8 +1655,7 @@ void blk_mq_free_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
if (!rq)
continue;
set->ops->exit_request(set->driver_data, rq,
hctx_idx, i);
set->ops->exit_request(set, rq, hctx_idx);
tags->static_rqs[i] = NULL;
}
}
@@ -1787,8 +1786,7 @@ int blk_mq_alloc_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
tags->static_rqs[i] = rq;
if (set->ops->init_request) {
if (set->ops->init_request(set->driver_data,
rq, hctx_idx, i,
if (set->ops->init_request(set, rq, hctx_idx,
node)) {
tags->static_rqs[i] = NULL;
goto fail;
@@ -1849,14 +1847,10 @@ static void blk_mq_exit_hctx(struct request_queue *q,
struct blk_mq_tag_set *set,
struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx)
{
unsigned flush_start_tag = set->queue_depth;
blk_mq_tag_idle(hctx);
if (set->ops->exit_request)
set->ops->exit_request(set->driver_data,
hctx->fq->flush_rq, hctx_idx,
flush_start_tag + hctx_idx);
set->ops->exit_request(set, hctx->fq->flush_rq, hctx_idx);
blk_mq_sched_exit_hctx(q, hctx, hctx_idx);
@@ -1889,7 +1883,6 @@ static int blk_mq_init_hctx(struct request_queue *q,
struct blk_mq_hw_ctx *hctx, unsigned hctx_idx)
{
int node;
unsigned flush_start_tag = set->queue_depth;
node = hctx->numa_node;
if (node == NUMA_NO_NODE)
@@ -1933,9 +1926,8 @@ static int blk_mq_init_hctx(struct request_queue *q,
goto sched_exit_hctx;
if (set->ops->init_request &&
set->ops->init_request(set->driver_data,
hctx->fq->flush_rq, hctx_idx,
flush_start_tag + hctx_idx, node))
set->ops->init_request(set, hctx->fq->flush_rq, hctx_idx,
node))
goto free_fq;
if (hctx->flags & BLK_MQ_F_BLOCKING)