在 2025/5/12 上午9:19, Yu Kuai 写道:
From: Yu Kuai <yuku...@huawei.com> This helper is used to check if blocks can be skipped before calling into pers->sync_request(), llbiltmap will use this helper to skip
typo error s/llbiltmap/llbitmap/g
resync for unwritten/clean data blocks, and recovery/check/repair for unwritten data blocks; Signed-off-by: Yu Kuai <yuku...@huawei.com> --- drivers/md/md-bitmap.h | 1 + drivers/md/md.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/drivers/md/md-bitmap.h b/drivers/md/md-bitmap.h index 41d09c6d0c14..13be2a10801a 100644 --- a/drivers/md/md-bitmap.h +++ b/drivers/md/md-bitmap.h @@ -99,6 +99,7 @@ struct bitmap_operations { void (*end_discard)(struct mddev *mddev, sector_t offset, unsigned long sectors);+ sector_t (*skip_sync_blocks)(struct mddev *mddev, sector_t offset);bool (*start_sync)(struct mddev *mddev, sector_t offset, sector_t *blocks, bool degraded); void (*end_sync)(struct mddev *mddev, sector_t offset, sector_t *blocks); diff --git a/drivers/md/md.c b/drivers/md/md.c index 4329ecfbe8ff..c23ee9c19cf9 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -9370,6 +9370,12 @@ void md_do_sync(struct md_thread *thread) if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) break;+ if (mddev->bitmap_ops && mddev->bitmap_ops->skip_sync_blocks) {+ sectors = mddev->bitmap_ops->skip_sync_blocks(mddev, j); + if (sectors) + goto update; + } + sectors = mddev->pers->sync_request(mddev, j, max_sectors, &skipped); if (sectors == 0) { @@ -9385,6 +9391,7 @@ void md_do_sync(struct md_thread *thread) if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) break;+update:j += sectors; if (j > max_sectors) /* when skipping, extra large numbers can be returned. */
