From: Li Nan <linan122@xxxxxxxxxx>
Recovery will go to giveup and let chunks_skipped++ in
raid10_sync_request() if there are some bad_blocks, and it will return
max_sector when chunks_skipped >= geo.raid_disks. Now, recovery fail and
data is inconsistent but user think recovery is done, it is wrong.
Fix it by set mirror's recovery_disabled and spare device shouln't be
added to here.
Signed-off-by: Li Nan <linan122@xxxxxxxxxx>
---
drivers/md/raid10.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index e21502c03b45..70cc87c7ee57 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3303,6 +3303,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
int chunks_skipped = 0;
sector_t chunk_mask = conf->geo.chunk_mask;
int page_idx = 0;
+ int error_disk = -1;
/*
* Allow skipping a full rebuild for incremental assembly
@@ -3386,7 +3387,18 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
return reshape_request(mddev, sector_nr, skipped);
if (chunks_skipped >= conf->geo.raid_disks) {
- /* if there has been nothing to do on any drive,
+ pr_err("md/raid10:%s: %s fail\n", mdname(mddev),
+ test_bit(MD_RECOVERY_SYNC, &mddev->recovery) ? "resync" : "recovery");
+ if (error_disk >= 0 && !test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
+ /*
+ * recovery fail, set mirrors.recovory_disabled,
+ * device shouldn't be added to there.
+ */
+ conf->mirrors[error_disk].recovery_disabled = mddev->recovery_disabled;
+ return 0;
+ }
+ /*
+ * if there has been nothing to do on any drive,
* then there is nothing to do at all..
*/
*skipped = 1;
@@ -3640,6 +3652,8 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
mdname(mddev));
mirror->recovery_disabled
= mddev->recovery_disabled;
+ } else {
+ error_disk = i;
}
put_buf(r10_bio);
if (rb2)
--
2.31.1
