- get_mems_allowed();
- zonelist = node_zonelist(slab_node(current->mempolicy), flags);
- for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) {
- struct kmem_cache_node *n;
-
- n = get_node(s, zone_to_nid(zone));
-
- if (n && cpuset_zone_allowed_hardwall(zone, flags) &&
- n->nr_partial > s->min_partial) {
- object = get_partial_node(s, n, c);
- if (object) {
- put_mems_allowed();
- return object;
+ do {
+ cpuset_mems_cookie = get_mems_allowed();
+ zonelist = node_zonelist(slab_node(), flags);
+ for_each_zone_zonelist(zone, z, zonelist, high_zoneidx) {
+ struct kmem_cache_node *n;
+
+ n = get_node(s, zone_to_nid(zone));
+
+ if (n && cpuset_zone_allowed_hardwall(zone, flags) &&
+ n->nr_partial > s->min_partial) {
+ object = get_partial_node(s, n, c);
+ if (object) {
+ /*
+ * Return the object even if
+ * put_mems_allowed indicated that
+ * the cpuset mems_allowed was
+ * updated in parallel. It's a
+ * harmless race between the alloc
+ * and the cpuset update.
+ */
+ put_mems_allowed(cpuset_mems_cookie);
+ return object;
+ }