From 880bcce0dcc3172fe865352b492c41d85290cb8d Mon Sep 17 00:00:00 2001

From: Heinz Mauelshagen <heinzm@redhat.com>

Date: Fri, 16 Mar 2018 23:01:59 +0100

Subject: [PATCH] dm raid: fix nosync status

Git-commit: 880bcce0dcc3172fe865352b492c41d85290cb8d

Patch-mainline: v4.17-rc1

References: bsc#1093023

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.

Cc: stable@vger.kernel.org # 4.16+

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>

Signed-off-by: Mike Snitzer <snitzer@redhat.com>

Signed-off-by: Coly Li <colyli@suse.de>

---

 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 b7a9c710ebec..598c9e3e41a5 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)))

-- 

2.16.3