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authorMing Lei <tom.leiming@gmail.com>2017-02-22 18:14:02 +0800
committerJens Axboe <axboe@fb.com>2017-03-08 09:56:12 -0700
commit01388df37627d2e89f0b835377c0eb39d81f671c (patch)
treeb431f6dbe023b4a2c8250f7fb052dff9276888c4 /block
parent6c8b232efea1ad3d263ff8b9c16b7e8767a77488 (diff)
downloadop-kernel-dev-01388df37627d2e89f0b835377c0eb39d81f671c.zip
op-kernel-dev-01388df37627d2e89f0b835377c0eb39d81f671c.tar.gz
blk-mq: free hctx->cpumask in release handler of hctx's kobject
It is obviously that hctx->cpumask is per hctx, and both share same lifetime, so this patch moves freeing of hctx->cpumask into release handler of hctx's kobject. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block')
-rw-r--r--block/blk-mq-sysfs.c1
-rw-r--r--block/blk-mq.c12
2 files changed, 1 insertions, 12 deletions
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
index cb19ec1..d745ab8 100644
--- a/block/blk-mq-sysfs.c
+++ b/block/blk-mq-sysfs.c
@@ -21,6 +21,7 @@ static void blk_mq_hw_sysfs_release(struct kobject *kobj)
{
struct blk_mq_hw_ctx *hctx = container_of(kobj, struct blk_mq_hw_ctx,
kobj);
+ free_cpumask_var(hctx->cpumask);
kfree(hctx->ctxs);
kfree(hctx);
}
diff --git a/block/blk-mq.c b/block/blk-mq.c
index f70595e..159187a 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1955,16 +1955,6 @@ static void blk_mq_exit_hw_queues(struct request_queue *q,
}
}
-static void blk_mq_free_hw_queues(struct request_queue *q,
- struct blk_mq_tag_set *set)
-{
- struct blk_mq_hw_ctx *hctx;
- unsigned int i;
-
- queue_for_each_hw_ctx(q, hctx, i)
- free_cpumask_var(hctx->cpumask);
-}
-
static int blk_mq_init_hctx(struct request_queue *q,
struct blk_mq_tag_set *set,
struct blk_mq_hw_ctx *hctx, unsigned hctx_idx)
@@ -2333,7 +2323,6 @@ static void blk_mq_realloc_hw_ctxs(struct blk_mq_tag_set *set,
if (hctx->tags)
blk_mq_free_map_and_requests(set, j);
blk_mq_exit_hctx(q, set, hctx, j);
- free_cpumask_var(hctx->cpumask);
kobject_put(&hctx->kobj);
hctxs[j] = NULL;
@@ -2446,7 +2435,6 @@ void blk_mq_free_queue(struct request_queue *q)
blk_mq_del_queue_tag_set(q);
blk_mq_exit_hw_queues(q, set, set->nr_hw_queues);
- blk_mq_free_hw_queues(q, set);
}
/* Basically redo blk_mq_init_queue with queue frozen */
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