diff options
| author | Heinz Mauelshagen <heinzm@redhat.com> | 2016-06-15 20:29:09 (GMT) |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2016-07-18 19:37:21 (GMT) |
| commit | 6ee0bae9c847086b7025494e84a2fff0dfc83bdc (patch) | |
| tree | cc923d9dca601ca97889f10e4cd7b912d30ce80c /drivers | |
| parent | ae3c6cfff98864fd2c282500632e11e3c9c514e3 (diff) | |
| download | linux-6ee0bae9c847086b7025494e84a2fff0dfc83bdc.tar.xz | |
dm raid: enhance comments in takeover checks
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-raid.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 864e903..cc6eb7c 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -1610,7 +1610,7 @@ static int rs_check_takeover(struct raid_set *rs) mddev->raid_disks == 2) return 0; - /* raid5 with parity N -> raid6 with parity N */ + /* raid5_* -> raid6_*_6 with Q-Syndrome N (e.g. raid5_ra -> raid6_ra_6 */ if (mddev->new_level == 6 && ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) || __within_range(mddev->new_layout, ALGORITHM_LEFT_ASYMMETRIC_6, ALGORITHM_RIGHT_SYMMETRIC_6))) @@ -1628,7 +1628,7 @@ static int rs_check_takeover(struct raid_set *rs) mddev->layout == ALGORITHM_PARITY_N) return 0; - /* raid6_*_n with parity N -> raid5_* */ + /* raid6_*_n with Q-Syndrome N -> raid5_* */ if (mddev->new_level == 5 && ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) || __within_range(mddev->new_layout, ALGORITHM_LEFT_ASYMMETRIC, ALGORITHM_RIGHT_SYMMETRIC))) |