md: suspend array when sync_action=reshape

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raid10 needs to resize/swap r10bio_pool when reshape changes
raid_disks, and, don't let new requests keep allocating r10bio
objects from the old pool while that transition is in progress.

suspend and lock array before mddev_start_reshape(), and resume
it on exit.

Other sync_action ops are unchanged.

Signed-off-by: Chen Cheng <chencheng@fnnas.com>
Link: https://patch.msgid.link/20260711100352.425177-2-chencheng@fnnas.com
Signed-off-by: Yu Kuai <yukuai@fygo.io>

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Chen Cheng 2026-07-11 18:03:50 +08:00 • committed by Yu Kuai

parent 6bc3deb600

commit 798d79a7e4

1 changed files with 12 additions and 3 deletions

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drivers/md/md.c

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