diff mbox series

[5/5] dm-raid: disable bitmap when journaled

Message ID a5d728db7e1123e0626d44a9c8cf0e2e4ecefe16.1536167421.git.heinzm@redhat.com (mailing list archive)
State Superseded, archived
Delegated to: Mike Snitzer
Headers show
Series dm raid: deadlock/corruptor fixes | expand

Commit Message

Heinz Mauelshagen Sept. 5, 2018, 5:36 p.m. UTC 
When a journal device for raid4/5/6 is used,
don't create a mutually exclusive write intent bitmap.

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 9754ef24fd0b..1f0e85f6f7e6 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -2472,7 +2472,7 @@  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)) {