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-rw-r--r--block/blk-mq.c9
-rw-r--r--block/blk.h1
-rw-r--r--block/genhd.c3
3 files changed, 11 insertions, 2 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 108a352051be..bc026372de43 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -188,9 +188,11 @@ void blk_mq_freeze_queue(struct request_queue *q)
}
EXPORT_SYMBOL_GPL(blk_mq_freeze_queue);
-void blk_mq_unfreeze_queue(struct request_queue *q)
+void __blk_mq_unfreeze_queue(struct request_queue *q, bool force_atomic)
{
mutex_lock(&q->mq_freeze_lock);
+ if (force_atomic)
+ q->q_usage_counter.data->force_atomic = true;
q->mq_freeze_depth--;
WARN_ON_ONCE(q->mq_freeze_depth < 0);
if (!q->mq_freeze_depth) {
@@ -199,6 +201,11 @@ void blk_mq_unfreeze_queue(struct request_queue *q)
}
mutex_unlock(&q->mq_freeze_lock);
}
+
+void blk_mq_unfreeze_queue(struct request_queue *q)
+{
+ __blk_mq_unfreeze_queue(q, false);
+}
EXPORT_SYMBOL_GPL(blk_mq_unfreeze_queue);
/*
diff --git a/block/blk.h b/block/blk.h
index e2ed2257709a..6c3c00a8fe19 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -51,6 +51,7 @@ struct blk_flush_queue *blk_alloc_flush_queue(int node, int cmd_size,
void blk_free_flush_queue(struct blk_flush_queue *q);
void blk_freeze_queue(struct request_queue *q);
+void __blk_mq_unfreeze_queue(struct request_queue *q, bool force_atomic);
void blk_queue_start_drain(struct request_queue *q);
#define BIO_INLINE_VECS 4
diff --git a/block/genhd.c b/block/genhd.c
index 1fe816be9bcd..7a766cc613c7 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -596,7 +596,8 @@ void del_gendisk(struct gendisk *disk)
/*
* Allow using passthrough request again after the queue is torn down.
*/
- blk_mq_unfreeze_queue(q);
+ blk_queue_flag_clear(QUEUE_FLAG_INIT_DONE, q);
+ __blk_mq_unfreeze_queue(q, true);
if (!(disk->flags & GENHD_FL_HIDDEN)) {
sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");