In a case of successful completion of a resync (in the last step)
- read_and_act sometimes still reads sync_action as "resync"
but sync_completed already is set to component_size.
When this race occurs, sync operation is
marked as finished, but last_checkpoint is
overwritten with sync_completed. It will cause next
sync operation (ie. reshape) to be reported as complete immediately
after start - mdmon will write successful completion of the reshape
to metadata. This patch sets last_checkpoint to 0 once the sync
is completed to stop it happening.
Signed-off-by: Pawel Baldysiak <pawel.baldysiak@intel.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
if (sync_completed > a->last_checkpoint)
a->last_checkpoint = sync_completed;
+ if (sync_completed >= a->info.component_size)
+ a->last_checkpoint = 0;
+
a->container->ss->sync_metadata(a->container);
dprintf("(%d): state:%s action:%s next(", a->info.container_member,
array_states[a->curr_state], sync_actions[a->curr_action]);