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FIX: Fiddle raid_disks number when restarting reshape 

When restarting a reshape, the value of 'raid_disks' is the *new*
value.  The old value is found by subtracting delta_disks.
So before calling analyse_change we must set raid_disks to be the
old value, and then reset it afterwards.

All other fields are cleanly separated with the main field being
the 'old' value and a new_* field available.

Signed-off-by: Adam Kwolek <adam.kwolek@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Adam Kwolek 2011-04-18 10:31:06 +10:00 committed by NeilBrown
parent cd0430a17c
commit 178b8f353c
1 changed files with 2 additions and 0 deletions
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@ -1676,8 +1676,10 @@ static int reshape_array(char *container, int fd, char *devname,
if (info->reshape_active) {
int new_level = info->new_level;
info->new_level = UnSet;
info->array.raid_disks -= info->delta_disks;
msg = analyse_change(info, &reshape);
info->new_level = new_level;
info->array.raid_disks += info->delta_disks;
if (!restart)
/* Make sure the array isn't read-only */
ioctl(fd, RESTART_ARRAY_RW, 0);