Gitweb: http://git.kernel.org/linus/e9d4758f6e93488dc719a1445ce54659a570938f
Commit: e9d4758f6e93488dc719a1445ce54659a570938f
Parent: b3546035277847028df650b147469fc943cf5c71
Author: NeilBrown <neilb@suse.de>
AuthorDate: Tue Mar 31 14:57:09 2009 +1100
Committer: NeilBrown <neilb@suse.de>
CommitDate: Tue Mar 31 14:57:09 2009 +1100
md: add takeover support for raid4 -> raid5 conversion.
Signed-off-by: NeilBrown <neilb@suse.de>
---
drivers/md/raid5.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 8a5e14e..9595327 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4967,6 +4967,11 @@ static void *raid5_takeover(mddev_t *mddev)
if (mddev->level == 1)
return raid5_takeover_raid1(mddev);
+ if (mddev->level == 4) {
+ mddev->new_layout = ALGORITHM_PARITY_N;
+ mddev->new_level = 5;
+ return setup_conf(mddev);
+ }
return ERR_PTR(-EINVAL);
}
--
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