md: add a new api prepare_suspend() in md_personality

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There are no functional changes, the new api will be used later to do
special handling for raid456 in md_suspend().

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230512015610.821290-5-yukuai1@huaweicloud.com

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Yu Kuai 2023-05-12 09:56:09 +08:00 • committed by Song Liu

parent 431e61257d

commit 3e00777d51

2 changed files with 5 additions and 0 deletions

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4

drivers/md/md.c

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1

drivers/md/md.h

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