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md/md-bitmap: handle the case bitmap is not enabled before start_sync()

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This case can be handled without knowing internal implementation.

Prepare to introduce CONFIG_MD_BITMAP.

Link: https://lore.kernel.org/linux-raid/20250707012711.376844-8-yukuai1@huaweicloud.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Xiao Ni <xni@redhat.com>
This commit is contained in:
Yu Kuai
2025-07-07 09:27:03 +08:00
parent 110332074d
commit 5ae58d1500
5 changed files with 24 additions and 24 deletions
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7
drivers/md/raid5.c
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@@ -6525,8 +6525,7 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
}
if (!test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) &&
!conf->fullsync &&
!mddev->bitmap_ops->start_sync(mddev, sector_nr, &sync_blocks,
true) &&
!md_bitmap_start_sync(mddev, sector_nr, &sync_blocks, true) &&
sync_blocks >= RAID5_STRIPE_SECTORS(conf)) {
/* we can skip this block, and probably more */
do_div(sync_blocks, RAID5_STRIPE_SECTORS(conf));
@@ -6557,9 +6556,7 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
still_degraded = true;
}
mddev->bitmap_ops->start_sync(mddev, sector_nr, &sync_blocks,
still_degraded);
md_bitmap_start_sync(mddev, sector_nr, &sync_blocks, still_degraded);
set_bit(STRIPE_SYNC_REQUESTED, &sh->state);
set_bit(STRIPE_HANDLE, &sh->state);