diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid10.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 77b562d18a9..2372926dc55 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2913,6 +2913,22 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, if (init_resync(conf)) return 0; + /* + * Allow skipping a full rebuild for incremental assembly + * of a clean array, like RAID1 does. + */ + if (mddev->bitmap == NULL && + mddev->recovery_cp == MaxSector && + !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) && + conf->fullsync == 0) { + *skipped = 1; + max_sector = mddev->dev_sectors; + if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) || + test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) + max_sector = mddev->resync_max_sectors; + return max_sector - sector_nr; + } + skipped: max_sector = mddev->dev_sectors; if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) || |