From 505ec28de70e7b97a1aba11e1c3342822b8ae089 Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Sat, 30 Aug 2003 22:44:06 -0700 Subject: [PATCH] [PATCH] Fix md superblock incompatabilities with 2.4 kernels. 2.4 kernels are very fussy about some values in the superblock, and 2.6 got them wrong. This fixes it. --- drivers/md/md.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 8c2df2953cbbf..0dd0eb7191616 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -638,14 +638,13 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev) /* make rdev->sb match mddev data.. * * 1/ zero out disks - * 2/ Add info for each disk, keeping track of highest desc_nr - * 3/ any empty disks < highest become removed + * 2/ Add info for each disk, keeping track of highest desc_nr (next_spare); + * 3/ any empty disks < next_spare become removed * * disks[0] gets initialised to REMOVED because * we cannot be sure from other fields if it has * been initialised or not. */ - int highest = 0; int i; int active=0, working=0,failed=0,spare=0,nr_disks=0; @@ -716,17 +715,17 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev) spare++; working++; } - if (rdev2->desc_nr > highest) - highest = rdev2->desc_nr; } - /* now set the "removed" bit on any non-trailing holes */ - for (i=0; iraid_disks ; i++) { mdp_disk_t *d = &sb->disks[i]; if (d->state == 0 && d->number == 0) { d->number = i; d->raid_disk = i; d->state = (1<state |= (1<nr_disks = nr_disks; -- 2.53.0