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authorNeilBrown <neilb@suse.de>2009-03-30 23:57:09 -0400
committerNeilBrown <neilb@suse.de>2009-03-30 23:57:09 -0400
commite9d4758f6e93488dc719a1445ce54659a570938f (patch)
tree13fb97a1f47f806b25b957cbf9d1ec69df8d0de8 /drivers/md/raid5.c
parentb3546035277847028df650b147469fc943cf5c71 (diff)
md: add takeover support for raid4 -> raid5 conversion.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/raid5.c')
-rw-r--r--drivers/md/raid5.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 8a5e14e4a851..95953273c4d9 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4967,6 +4967,11 @@ static void *raid5_takeover(mddev_t *mddev)
4967 4967
4968 if (mddev->level == 1) 4968 if (mddev->level == 1)
4969 return raid5_takeover_raid1(mddev); 4969 return raid5_takeover_raid1(mddev);
4970 if (mddev->level == 4) {
4971 mddev->new_layout = ALGORITHM_PARITY_N;
4972 mddev->new_level = 5;
4973 return setup_conf(mddev);
4974 }
4970 4975
4971 return ERR_PTR(-EINVAL); 4976 return ERR_PTR(-EINVAL);
4972} 4977}