Patch "block: factor out a blk_debugfs_remove helper" has been added to the 6.1-stable tree

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This is a note to let you know that I've just added the patch titled

    block: factor out a blk_debugfs_remove helper

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     block-factor-out-a-blk_debugfs_remove-helper.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit a470755911a1d91ec554013211b835d0032051ab
Author: Christoph Hellwig <hch@xxxxxx>
Date:   Mon Nov 14 05:26:34 2022 +0100

    block: factor out a blk_debugfs_remove helper
    
    [ Upstream commit 6fc75f309d291d328b4ea2f91bef0ff56e4bc7c2 ]
    
    Split the debugfs removal from blk_unregister_queue into a helper so that
    the it can be reused for blk_register_queue error handling.
    
    Signed-off-by: Christoph Hellwig <hch@xxxxxx>
    Link: https://lore.kernel.org/r/20221114042637.1009333-3-hch@xxxxxx
    Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
    Stable-dep-of: 49e4d04f0486 ("block: Drop spurious might_sleep() from blk_put_queue()")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 2b1cf0b2a5c7..3d6951a0b4e7 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -797,6 +797,19 @@ struct kobj_type blk_queue_ktype = {
 	.release	= blk_release_queue,
 };
 
+static void blk_debugfs_remove(struct gendisk *disk)
+{
+	struct request_queue *q = disk->queue;
+
+	mutex_lock(&q->debugfs_mutex);
+	blk_trace_shutdown(q);
+	debugfs_remove_recursive(q->debugfs_dir);
+	q->debugfs_dir = NULL;
+	q->sched_debugfs_dir = NULL;
+	q->rqos_debugfs_dir = NULL;
+	mutex_unlock(&q->debugfs_mutex);
+}
+
 /**
  * blk_register_queue - register a block layer queue with sysfs
  * @disk: Disk of which the request queue should be registered with sysfs.
@@ -922,11 +935,5 @@ void blk_unregister_queue(struct gendisk *disk)
 	kobject_del(&q->kobj);
 	mutex_unlock(&q->sysfs_dir_lock);
 
-	mutex_lock(&q->debugfs_mutex);
-	blk_trace_shutdown(q);
-	debugfs_remove_recursive(q->debugfs_dir);
-	q->debugfs_dir = NULL;
-	q->sched_debugfs_dir = NULL;
-	q->rqos_debugfs_dir = NULL;
-	mutex_unlock(&q->debugfs_mutex);
+	blk_debugfs_remove(disk);
 }



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