From: Ming Lei <ming.lei@redhat.com>
Date: Sat, 22 Jan 2022 11:10:47 +0000 (+0800)
Subject: block: don't remove hctx debugfs dir from blk_mq_exit_queue
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=72c3b1b24a6138cca0003d73eff13bb3355d0af7;p=users%2Fhch%2Fblock.git

block: don't remove hctx debugfs dir from blk_mq_exit_queue

The queue's top debugfs dir is removed from blk_release_queue(), so all
hctx's debugfs dirs are removed from there. Given blk_mq_exit_queue()
is only called from blk_cleanup_queue(), it isn't necessary to remove
hctx debugfs from blk_mq_exit_queue().

So remove it from blk_mq_exit_queue().

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 6fd0b0f65251..b38e125a710c 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3434,7 +3434,6 @@ static void blk_mq_exit_hw_queues(struct request_queue *q,
 	queue_for_each_hw_ctx(q, hctx, i) {
 		if (i == nr_queue)
 			break;
-		blk_mq_debugfs_unregister_hctx(hctx);
 		blk_mq_exit_hctx(q, set, hctx, i);
 	}
 }