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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Josef Bacik <josef@toxicpanda.com>,
	David Sterba <dsterba@suse.com>,
	linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: [PATCH 2/8] block: assert the locking state in delete_partition
Date: Wed, 21 Jul 2021 17:35:17 +0200	[thread overview]
Message-ID: <20210721153523.103818-3-hch@lst.de> (raw)
In-Reply-To: <20210721153523.103818-1-hch@lst.de>

Add a lockdep assert instead of the outdated locking comment.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 block/partitions/core.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/block/partitions/core.c b/block/partitions/core.c
index 4230d4f71879..9902b1635b7d 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -281,12 +281,10 @@ struct device_type part_type = {
 	.uevent		= part_uevent,
 };
 
-/*
- * Must be called either with open_mutex held, before a disk can be opened or
- * after all disk users are gone.
- */
 static void delete_partition(struct block_device *part)
 {
+	lockdep_assert_held(&part->bd_disk->open_mutex);
+
 	fsync_bdev(part);
 	__invalidate_device(part, true);
 
-- 
2.30.2


  parent reply	other threads:[~2021-07-21 15:36 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-21 15:35 fixes and cleanups for block_device refcounting Christoph Hellwig
2021-07-21 15:35 ` [PATCH 1/8] block: delay freeing the gendisk Christoph Hellwig
2021-07-22  2:05   ` Ming Lei
2021-07-21 15:35 ` Christoph Hellwig [this message]
2021-07-22  2:06   ` [PATCH 2/8] block: assert the locking state in delete_partition Ming Lei
2021-07-21 15:35 ` [PATCH 3/8] block: grab a device model reference in blkdev_get_no_open Christoph Hellwig
2021-07-22  2:47   ` Ming Lei
2021-07-21 15:35 ` [PATCH 4/8] block: don't grab a reference to the whole device in blkdev_get_part Christoph Hellwig
2021-07-21 15:35 ` [PATCH 5/8] btrfs: no need to grab a reference to disk->part0 Christoph Hellwig
2021-07-21 16:15   ` David Sterba
2021-07-21 15:35 ` [PATCH 6/8] loop: don't grab a reference to the block device Christoph Hellwig
2021-07-21 15:35 ` [PATCH 7/8] block: remove bdgrab Christoph Hellwig
2021-07-21 15:35 ` [PATCH 8/8] block: remove bdget/bdput Christoph Hellwig
2021-07-21 20:52 ` fixes and cleanups for block_device refcounting Josef Bacik

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