[PATCH v2 2/3] blk-mq: remove blk_freeze_queue

From: Jinlong Chen
Date: Sat Oct 29 2022 - 23:07:40 EST


Nobody is calling blk_freeze_queue except its alias, so remove it.

Signed-off-by: Jinlong Chen <nickyc975@xxxxxxxxxx>
---
block/blk-mq.c | 18 +-----------------
block/blk.h | 1 -
2 files changed, 1 insertion(+), 18 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 14c4165511b9..e0654a2e80b9 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -194,27 +194,11 @@ EXPORT_SYMBOL_GPL(blk_mq_freeze_queue_wait_timeout);
* Guarantee no request is in use, so we can change any data structure of
* the queue afterward.
*/
-void blk_freeze_queue(struct request_queue *q)
+void blk_mq_freeze_queue(struct request_queue *q)
{
- /*
- * In the !blk_mq case we are only calling this to kill the
- * q_usage_counter, otherwise this increases the freeze depth
- * and waits for it to return to zero. For this reason there is
- * no blk_unfreeze_queue(), and blk_freeze_queue() is not
- * exported to drivers as the only user for unfreeze is blk_mq.
- */
blk_freeze_queue_start(q);
blk_mq_freeze_queue_wait(q);
}
-
-void blk_mq_freeze_queue(struct request_queue *q)
-{
- /*
- * ...just an alias to keep freeze and unfreeze actions balanced
- * in the blk_mq_* namespace
- */
- blk_freeze_queue(q);
-}
EXPORT_SYMBOL_GPL(blk_mq_freeze_queue);

void __blk_mq_unfreeze_queue(struct request_queue *q, bool force_atomic)
diff --git a/block/blk.h b/block/blk.h
index 7f9e089ab1f7..e9addea2838a 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -37,7 +37,6 @@ struct blk_flush_queue *blk_alloc_flush_queue(int node, int cmd_size,
gfp_t flags);
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);
int __bio_queue_enter(struct request_queue *q, struct bio *bio);
--
2.31.1