[dm-devel] [PATCH] dm raid: fix nosync status

[Heinz Mauelshagen]

Fix a race for "nosync" activations providing "aa.." device
health characters and "0/N" sync ratio rather than "AA..."
and "N/N".  Occurs when status for the raid set is retrieved
during resume before the MD sync thread starts and clears
the MD_RECOVERY_NEEDED flag.

Signed-off-by: Heinz Mauelshagen <heinzm at redhat.com>
---
 drivers/md/dm-raid.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index c1d1034ff7b7..335ebd46a986 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3408,7 +3408,8 @@ static sector_t rs_get_progress(struct raid_set *rs, unsigned long recovery,
 		set_bit(RT_FLAG_RS_IN_SYNC, &rs->runtime_flags);
 
 	} else {
-		if (!test_bit(MD_RECOVERY_INTR, &recovery) &&
+		if (!test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags) &&
+		    !test_bit(MD_RECOVERY_INTR, &recovery) &&
 		    (test_bit(MD_RECOVERY_NEEDED, &recovery) ||
 		     test_bit(MD_RECOVERY_RESHAPE, &recovery) ||
 		     test_bit(MD_RECOVERY_RUNNING, &recovery)))
-- 
2.14.3