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md: call __md_stop_writes in md_stop

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commit 0dd84b3193 upstream.

From the link [1], we can see raid1d was running even after the path
raid_dtr -> md_stop -> __md_stop.

Let's stop write first in destructor to align with normal md-raid to
fix the KASAN issue.

[1]. https://lore.kernel.org/linux-raid/CAPhsuW5gc4AakdGNdF8ubpezAuDLFOYUO_sfMZcec6hQFm8nhg@mail.gmail.com/T/#m7f12bf90481c02c6d2da68c64aeed4779b7df74a

Fixes: 48df498daf ("md: move bitmap_destroy to the beginning of __md_stop")
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Guoqing Jiang
2022-08-17 20:05:14 +08:00
committed by Greg Kroah-Hartman
parent f68f025c7e
commit a5a58fab55
1 changed files with 1 additions and 0 deletions
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1
drivers/md/md.c
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@@ -6299,6 +6299,7 @@ void md_stop(struct mddev *mddev)
/* stop the array and free an attached data structures.
* This is called from dm-raid
*/
__md_stop_writes(mddev);
__md_stop(mddev);
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);