From: Christoph Hellwig <hch@lst.de>
Date: Thu, 22 Jul 2021 09:53:55 +0200
Subject: [PATCH] block: assert the locking state in delete_partition
Git-commit: a45e43cad798173b41e0d6f119784826d3ead02c
Patch-mainline: v5.15-rc1
References: jsc#PED-1183
Add a lockdep assert instead of the outdated locking comment.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Chaitanya Kulkarni <ckulkarnilinux@gmail.com>
Link: https://lore.kernel.org/r/20210722075402.983367-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
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);
--
2.35.3