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imsm: Do not mark resync during reshape 

During reshape, resync/rebuild in the same container is not possible
due to fact that all arrays in container has to share the same disks set.

Block new resync/rebuild process initialization and setting resync_start
to 0 while any reshape in container is active. This avoids breaking
container reshape and doesn't allow for starting multiple processes
/resync/rebuild and reshape/ at the same time in md.

Signed-off-by: Adam Kwolek <adam.kwolek@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Adam Kwolek 2011-10-03 10:31:22 +11:00 committed by NeilBrown
parent e2962bfc21
commit b91726651d
1 changed files with 5 additions and 3 deletions
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8
super-intel.c
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@ -2373,8 +2373,9 @@ static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info,
info->reshape_progress = 0;
info->resync_start = MaxSector;
if (map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED ||
dev->vol.dirty) {
if ((map_to_analyse->map_state == IMSM_T_STATE_UNINITIALIZED ||
dev->vol.dirty) &&
imsm_reshape_blocks_arrays_changes(super) == 0) {
info->resync_start = 0;
}
if (dev->vol.migr_state) {
@ -6230,7 +6231,8 @@ static int imsm_set_array_state(struct active_array *a, int consistent)
super->updates_pending++;
a->last_checkpoint = 0;
}
} else if (!is_resyncing(dev) && !failed) {
} else if ((!is_resyncing(dev) && !failed) &&
(imsm_reshape_blocks_arrays_changes(super) == 0)) {
/* mark the start of the init process if nothing is failed */
dprintf("imsm: mark resync start\n");
if (map->map_state == IMSM_T_STATE_UNINITIALIZED)