On Wed, 9 Jun 2010 15:20:37 +0100 "Kwolek, Adam" <adam.kwolek@xxxxxxxxx> wrote: > (md: Online Capacity Expansion for IMSM) > If max_disks limit is not set, md doesn't allow for reconfiguration and starting reshape. For external metadata this limit is not set. > It is set for native meta during metadata reading. > Limit max_disks is not used for external meta, so we can set it to value (MD_SB_DISKS) that will not block reshape. > --- > > drivers/md/md.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/drivers/md/md.c b/drivers/md/md.c index dfbba92..9cec771 100644 > --- a/drivers/md/md.c > +++ b/drivers/md/md.c > @@ -5380,6 +5380,8 @@ static int update_raid_disks(mddev_t *mddev, int raid_disks) > /* change the number of raid disks */ > if (mddev->pers->check_reshape == NULL) > return -EINVAL; > + if (mddev->external) > + mddev->max_disks = MD_SB_DISKS; > if (raid_disks <= 0 || > raid_disks >= mddev->max_disks) > return -EINVAL; > commit 233fca36bb439eadcad28500b5139fed7c64a0ae should make this unnecessary. NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
