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authorHeinz Mauelshagen <heinzm@redhat.com>2018-12-18 17:35:41 +0100
committerMike Snitzer <snitzer@redhat.com>2018-12-18 13:48:35 -0500
commit74694bcbdf7e28a5ad548cdda9ac56d30be00d13 (patch)
tree44eabdc82e3b9ac13159650576f06c0b71f523f1 /drivers/md
parent34743bfddef2c50af20234ae873324ca49320a55 (diff)
downloadlinux-74694bcbdf7e28a5ad548cdda9ac56d30be00d13.tar.bz2
dm raid: fix false -EBUSY when handling check/repair message
Sending a check/repair message infrequently leads to -EBUSY instead of properly identifying an active resync. This occurs because raid_message() is testing recovery bits in a racy way. Fix by calling decipher_sync_action() from raid_message() to properly identify the idle state of the RAID device. Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-raid.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index e1dd1622a290..adcfe8ae10aa 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3690,8 +3690,7 @@ static int raid_message(struct dm_target *ti, unsigned int argc, char **argv,
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
md_reap_sync_thread(mddev);
}
- } else if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) ||
- test_bit(MD_RECOVERY_NEEDED, &mddev->recovery))
+ } else if (decipher_sync_action(mddev, mddev->recovery) != st_idle)
return -EBUSY;
else if (!strcasecmp(argv[0], "resync"))
; /* MD_RECOVERY_NEEDED set below */