diff mbox series

dm-raid: avoid bitmap with raid4/5/6 journal device

Message ID 20181012182425.4025-1-heinzm@redhat.com (mailing list archive)
State Accepted, archived
Delegated to: Mike Snitzer
Headers show
Series dm-raid: avoid bitmap with raid4/5/6 journal device | expand

Commit Message

Heinz Mauelshagen Oct. 12, 2018, 6:24 p.m. UTC
With raid4/5/6, journal device and write intent bitmap are mutually exclusive.

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
---
 drivers/md/dm-raid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index c44925e4e481..e1dd1622a290 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -2475,7 +2475,7 @@  static int super_validate(struct raid_set *rs, struct md_rdev *rdev)
 	}
 
 	/* Enable bitmap creation for RAID levels != 0 */
-	mddev->bitmap_info.offset = rt_is_raid0(rs->raid_type) ? 0 : to_sector(4096);
+	mddev->bitmap_info.offset = (rt_is_raid0(rs->raid_type) || rs->journal_dev.dev) ? 0 : to_sector(4096);
 	mddev->bitmap_info.default_offset = mddev->bitmap_info.offset;
 
 	if (!test_and_clear_bit(FirstUse, &rdev->flags)) {