On Wed, 16 Jun 2010 11:56:12 +0100
"Trela, Maciej" <Maciej.Trela@xxxxxxxxx> wrote:
> From: Maciej Trela <maciej.trela@xxxxxxxxx>
>
> Only level 5 with layout=PARITY_N can be taken over to raid0 now.
> Lets allow level 4 either.
Thanks.
->layout isn't set for level==4 so we really need separate code branches for
'4' and '5'. I made this change.
Applied.
Thanks,
NeilBrown
>
> Signed-off-by: Maciej Trela <maciej.trela@xxxxxxxxx>
> ---
> drivers/md/raid0.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index ac09b7d..0b45759 100644
> --- a/drivers/md/raid0.c
> +++ b/drivers/md/raid0.c
> @@ -569,7 +569,7 @@ static void raid0_status(struct seq_file *seq, mddev_t *mddev)
> return;
> }
>
> -static void *raid0_takeover_raid5(mddev_t *mddev)
> +static void *raid0_takeover_raid45(mddev_t *mddev)
> {
> mdk_rdev_t *rdev;
> raid0_conf_t *priv_conf;
> @@ -650,9 +650,9 @@ static void *raid0_takeover(mddev_t *mddev)
> * raid5 - providing it is Raid4 layout and one disk is faulty
> * raid10 - assuming we have all necessary active disks
> */
> - if (mddev->level == 5) {
> + if (mddev->level == 5 || mddev->level == 4){
> if (mddev->layout == ALGORITHM_PARITY_N)
> - return raid0_takeover_raid5(mddev);
> + return raid0_takeover_raid45(mddev);
>
> printk(KERN_ERR "md/raid0:%s: Raid can only takeover Raid5 with layout: %d\n",
> mdname(mddev), ALGORITHM_PARITY_N);
>
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