The 'cpumask' of 'struct blk_mq_tags' is introduced to set
the irq affinity of NVMe queue, but now we have introduced
.map_changed callback which can cover the use case and looks
more flexible.
Signed-off-by: Ming Lei <tom.leim...@gmail.com>
---
block/blk-mq-tag.c | 5 -----
block/blk-mq-tag.h | 1 -
block/blk-mq.c | 11 +----------
include/linux/blk-mq.h | 1 -
4 files changed, 1 insertion(+), 17 deletions(-)
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 9115c6d..931b62d 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -613,11 +613,6 @@ struct blk_mq_tags *blk_mq_init_tags(unsigned int
total_tags,
if (!tags)
return NULL;
- if (!zalloc_cpumask_var(&tags->cpumask, GFP_KERNEL)) {
- kfree(tags);
- return NULL;
- }
-
tags->nr_tags = total_tags;
tags->nr_reserved_tags = reserved_tags;
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
index 9eb2cf4..d5a9612 100644
--- a/block/blk-mq-tag.h
+++ b/block/blk-mq-tag.h
@@ -44,7 +44,6 @@ struct blk_mq_tags {
struct list_head page_list;
int alloc_policy;
- cpumask_var_t cpumask;
};
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 181e438..8196011 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1811,7 +1811,6 @@ static void blk_mq_map_swqueue(struct request_queue *q)
hctx = q->mq_ops->map_queue(q, i);
cpumask_set_cpu(i, hctx->cpumask);
- cpumask_set_cpu(i, hctx->tags->cpumask);
ctx->index_hw = hctx->nr_ctx;
hctx->ctxs[hctx->nr_ctx++] = ctx;
}
@@ -2198,12 +2197,6 @@ static int blk_mq_alloc_rq_maps(struct blk_mq_tag_set
*set)
return 0;
}
-struct cpumask *blk_mq_tags_cpumask(struct blk_mq_tags *tags)
-{
- return tags->cpumask;
-}
-EXPORT_SYMBOL_GPL(blk_mq_tags_cpumask);
-
/*
* Alloc a tag set to be associated with one or more request queues.
* May fail with EINVAL for various error conditions. May adjust the
@@ -2265,10 +2258,8 @@ void blk_mq_free_tag_set(struct blk_mq_tag_set *set)
int i;
for (i = 0; i < set->nr_hw_queues; i++) {
- if (set->tags[i]) {
+ if (set->tags[i])
blk_mq_free_rq_map(set, set->tags[i], i);
- free_cpumask_var(set->tags[i]->cpumask);
- }
}
kfree(set->tags);
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index a4a7433..79d4aaf 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -190,7 +190,6 @@ bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
gfp_t gfp, bool reserved);
struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag);
-struct cpumask *blk_mq_tags_cpumask(struct blk_mq_tags *tags);
enum {
BLK_MQ_UNIQUE_TAG_BITS = 16,
--
1.9.1
--
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