nodemask_t *allowednodes = NULL;/* zonelist_cache approximation */
int zlc_active = 0; /* set if using zonelist_cache */
int did_zlc_setup = 0; /* just call zlc_setup() one time */
+ enum zone_type highest_zoneidx = -1; /* Gets set for policy zonelists */
zonelist_scan:
/*
z = zonelist->zones;
do {
+ /*
+ * In NUMA, this could be a policy zonelist which contains
+ * zones that may not be allowed by the current gfp_mask.
+ * Check the zone is allowed by the current flags
+ */
+ if (unlikely(alloc_should_filter_zonelist(zonelist))) {
+ if (highest_zoneidx == -1)
+ highest_zoneidx = gfp_zone(gfp_mask);
+ if (zone_idx(*z) > highest_zoneidx)
+ continue;
+ }
+
if (NUMA_BUILD && zlc_active &&
!zlc_zone_worth_trying(zonelist, z, allowednodes))
continue;