Yu Kuai 82ce0ae87a dm raid: protect md_stop() with 'reconfig_mutex' ...

[ Upstream commit 7d5fff8982a2199d49ec067818af7d84d4f95ca0 ]

__md_stop_writes() and __md_stop() will modify many fields that are
protected by 'reconfig_mutex', and all the callers will grab
'reconfig_mutex' except for md_stop().

Also, update md_stop() to make certain 'reconfig_mutex' is held using
lockdep_assert_held().

Fixes: 9d09e663d5 ("dm: raid456 basic support")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-08-11 11:57:38 +02:00

259 KiB

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