Just check for a non-NULL elevator directly to make the code more clear.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
block/blk-mq-tag.c | 4 ++--
block/blk-mq.c | 10 +++-------
block/blk-mq.h | 2 +-
include/linux/blk-mq.h | 2 --
4 files changed, 6 insertions(+), 12 deletions(-)
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index ae722f8b13fb2c..281367b0452764 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -90,9 +90,9 @@ static inline bool hctx_may_queue(struct blk_mq_hw_ctx *hctx,
static int __blk_mq_get_tag(struct blk_mq_alloc_data *data,
struct sbitmap_queue *bt)
{
- if (!(data->flags & BLK_MQ_REQ_INTERNAL) &&
- !hctx_may_queue(data->hctx, bt))
+ if (!data->q->elevator && !hctx_may_queue(data->hctx, bt))
return BLK_MQ_NO_TAG;
+
if (data->shallow_depth)
return __sbitmap_queue_get_shallow(bt, data->shallow_depth);
else
diff --git a/block/blk-mq.c b/block/blk-mq.c
index b8738b3c6d06a2..2e1d7b435e9a91 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -279,7 +279,7 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
struct request *rq = tags->static_rqs[tag];
req_flags_t rq_flags = 0;
- if (data->flags & BLK_MQ_REQ_INTERNAL) {
+ if (data->q->elevator) {
rq->tag = BLK_MQ_NO_TAG;
rq->internal_tag = tag;
} else {
@@ -364,8 +364,6 @@ static struct request *__blk_mq_alloc_request(struct blk_mq_alloc_data *data)
data->flags |= BLK_MQ_REQ_NOWAIT;
if (e) {
- data->flags |= BLK_MQ_REQ_INTERNAL;
-
/*
* Flush requests are special and go directly to the
* dispatch list. Don't include reserved tags in the
@@ -380,7 +378,7 @@ static struct request *__blk_mq_alloc_request(struct blk_mq_alloc_data *data)
retry:
data->ctx = blk_mq_get_ctx(q);
data->hctx = blk_mq_map_queue(q, data->cmd_flags, data->ctx);
- if (!(data->flags & BLK_MQ_REQ_INTERNAL))
+ if (!e)
blk_mq_tag_busy(data->hctx);
/*
@@ -476,9 +474,7 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
cpu = cpumask_first_and(data.hctx->cpumask, cpu_online_mask);
data.ctx = __blk_mq_get_ctx(q, cpu);
- if (q->elevator)
- data.flags |= BLK_MQ_REQ_INTERNAL;
- else
+ if (!q->elevator)
blk_mq_tag_busy(data.hctx);
ret = -EWOULDBLOCK;
diff --git a/block/blk-mq.h b/block/blk-mq.h
index b3ce0f3a2ad2a7..c6330335767ce9 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -159,7 +159,7 @@ struct blk_mq_alloc_data {
static inline struct blk_mq_tags *blk_mq_tags_from_data(struct blk_mq_alloc_data *data)
{
- if (data->flags & BLK_MQ_REQ_INTERNAL)
+ if (data->q->elevator)
return data->hctx->sched_tags;
return data->hctx->tags;
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 1641ec6cd7e551..8986e88a986b14 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -447,8 +447,6 @@ enum {
BLK_MQ_REQ_NOWAIT = (__force blk_mq_req_flags_t)(1 << 0),
/* allocate from reserved pool */
BLK_MQ_REQ_RESERVED = (__force blk_mq_req_flags_t)(1 << 1),
- /* allocate internal/sched tag */
- BLK_MQ_REQ_INTERNAL = (__force blk_mq_req_flags_t)(1 << 2),
/* set RQF_PREEMPT */
BLK_MQ_REQ_PREEMPT = (__force blk_mq_req_flags_t)(1 << 3),
};
--
2.26.2
