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-rw-r--r--block/blk-mq-sysfs.c25
-rw-r--r--block/blk-mq.c6
-rw-r--r--drivers/block/nvme-core.c2
3 files changed, 25 insertions, 8 deletions
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
index 1630a20d5dc..6774a0e6986 100644
--- a/block/blk-mq-sysfs.c
+++ b/block/blk-mq-sysfs.c
@@ -15,6 +15,26 @@
static void blk_mq_sysfs_release(struct kobject *kobj)
{
+ struct request_queue *q;
+
+ q = container_of(kobj, struct request_queue, mq_kobj);
+ free_percpu(q->queue_ctx);
+}
+
+static void blk_mq_ctx_release(struct kobject *kobj)
+{
+ struct blk_mq_ctx *ctx;
+
+ ctx = container_of(kobj, struct blk_mq_ctx, kobj);
+ kobject_put(&ctx->queue->mq_kobj);
+}
+
+static void blk_mq_hctx_release(struct kobject *kobj)
+{
+ struct blk_mq_hw_ctx *hctx;
+
+ hctx = container_of(kobj, struct blk_mq_hw_ctx, kobj);
+ kfree(hctx);
}
struct blk_mq_ctx_sysfs_entry {
@@ -318,13 +338,13 @@ static struct kobj_type blk_mq_ktype = {
static struct kobj_type blk_mq_ctx_ktype = {
.sysfs_ops = &blk_mq_sysfs_ops,
.default_attrs = default_ctx_attrs,
- .release = blk_mq_sysfs_release,
+ .release = blk_mq_ctx_release,
};
static struct kobj_type blk_mq_hw_ktype = {
.sysfs_ops = &blk_mq_hw_sysfs_ops,
.default_attrs = default_hw_ctx_attrs,
- .release = blk_mq_sysfs_release,
+ .release = blk_mq_hctx_release,
};
static void blk_mq_unregister_hctx(struct blk_mq_hw_ctx *hctx)
@@ -355,6 +375,7 @@ static int blk_mq_register_hctx(struct blk_mq_hw_ctx *hctx)
return ret;
hctx_for_each_ctx(hctx, ctx, i) {
+ kobject_get(&q->mq_kobj);
ret = kobject_add(&ctx->kobj, &hctx->kobj, "cpu%u", ctx->cpu);
if (ret)
break;
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 2f95747c287..9ee3b87c449 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1641,10 +1641,8 @@ static void blk_mq_free_hw_queues(struct request_queue *q,
struct blk_mq_hw_ctx *hctx;
unsigned int i;
- queue_for_each_hw_ctx(q, hctx, i) {
+ queue_for_each_hw_ctx(q, hctx, i)
free_cpumask_var(hctx->cpumask);
- kfree(hctx);
- }
}
static int blk_mq_init_hctx(struct request_queue *q,
@@ -2002,11 +2000,9 @@ void blk_mq_free_queue(struct request_queue *q)
percpu_ref_exit(&q->mq_usage_counter);
- free_percpu(q->queue_ctx);
kfree(q->queue_hw_ctx);
kfree(q->mq_map);
- q->queue_ctx = NULL;
q->queue_hw_ctx = NULL;
q->mq_map = NULL;
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index cb529e9a82d..d826bf3e62c 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -106,7 +106,7 @@ struct nvme_queue {
dma_addr_t cq_dma_addr;
u32 __iomem *q_db;
u16 q_depth;
- u16 cq_vector;
+ s16 cq_vector;
u16 sq_head;
u16 sq_tail;
u16 cq_head;