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authorBart Van Assche <bvanassche@acm.org>2019-10-01 02:00:42 +0300
committerJens Axboe <axboe@kernel.dk>2019-10-07 17:31:59 +0300
commit9566256518de0520c964bdf23140eac324b136af (patch)
tree7dd67fe75b7befe0ccdb107d34bf41b1f516d3ba
parent1d200e9d6f635ae894993a7d0f1b9e0b6e522e3b (diff)
downloadlinux-9566256518de0520c964bdf23140eac324b136af.tar.xz
block: Remove request_queue.nr_queues
Commit 897bb0c7f1ea ("blk-mq: Use proper cpumask iterator"; v4.6) removed the last use of request_queue.nr_queues from outside blk_mq_init_allocate_queue(). Remove this member variable to make struct request_queue smaller. This patch does not change any functionality. Cc: Christoph Hellwig <hch@infradead.org> Cc: Ming Lei <ming.lei@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/blk-mq.c6
-rw-r--r--include/linux/blkdev.h1
2 files changed, 3 insertions, 4 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index ec791156e9cc..9d932939b576 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2876,9 +2876,9 @@ struct request_queue *blk_mq_init_allocated_queue(struct blk_mq_tag_set *set,
/* init q->mq_kobj and sw queues' kobjects */
blk_mq_sysfs_init(q);
- q->nr_queues = nr_hw_queues(set);
- q->queue_hw_ctx = kcalloc_node(q->nr_queues, sizeof(*(q->queue_hw_ctx)),
- GFP_KERNEL, set->numa_node);
+ q->queue_hw_ctx = kcalloc_node(nr_hw_queues(set),
+ sizeof(*(q->queue_hw_ctx)), GFP_KERNEL,
+ set->numa_node);
if (!q->queue_hw_ctx)
goto err_sys_init;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f3ea78b0c91c..d4051acb92a1 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -411,7 +411,6 @@ struct request_queue {
/* sw queues */
struct blk_mq_ctx __percpu *queue_ctx;
- unsigned int nr_queues;
unsigned int queue_depth;