summaryrefslogtreecommitdiff
path: root/include/linux/blkdev.h
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2019-06-03 11:50:18 +0200
committerIngo Molnar <mingo@kernel.org>2019-06-03 11:50:18 +0200
commit26b73da3604cc1a6596406d136b14d1a01c3676f (patch)
treec7839809e35fce4868910742157e8ef96782b378 /include/linux/blkdev.h
parent5ca584d935c32906d114924dc0e1dbfcbb13fdb2 (diff)
parentf2c7c76c5d0a443053e94adb9f0918fa2fb85c3a (diff)
Merge tag 'v5.2-rc3' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/blkdev.h')
-rw-r--r--include/linux/blkdev.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 1aafeb923e7b..592669bcc536 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -542,7 +542,7 @@ struct request_queue {
struct list_head unused_hctx_list;
spinlock_t unused_hctx_lock;
- atomic_t mq_freeze_depth;
+ int mq_freeze_depth;
#if defined(CONFIG_BLK_DEV_BSG)
struct bsg_class_device bsg_dev;
@@ -554,6 +554,11 @@ struct request_queue {
#endif
struct rcu_head rcu_head;
wait_queue_head_t mq_freeze_wq;
+ /*
+ * Protect concurrent access to q_usage_counter by
+ * percpu_ref_kill() and percpu_ref_reinit().
+ */
+ struct mutex mq_freeze_lock;
struct percpu_ref q_usage_counter;
struct blk_mq_tag_set *tag_set;