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-rw-r--r--mm/page_alloc.c21
1 files changed, 8 insertions, 13 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7d5e40fe0c29..27f9d4beac98 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3153,12 +3153,10 @@ static void zoneref_set_zone(struct zone *zone, struct zoneref *zoneref)
* Add all populated zones of a node to the zonelist.
*/
static int build_zonelists_node(pg_data_t *pgdat, struct zonelist *zonelist,
- int nr_zones, enum zone_type zone_type)
+ int nr_zones)
{
struct zone *zone;
-
- BUG_ON(zone_type >= MAX_NR_ZONES);
- zone_type++;
+ enum zone_type zone_type = MAX_NR_ZONES;
do {
zone_type--;
@@ -3168,8 +3166,8 @@ static int build_zonelists_node(pg_data_t *pgdat, struct zonelist *zonelist,
&zonelist->_zonerefs[nr_zones++]);
check_highest_zone(zone_type);
}
-
} while (zone_type);
+
return nr_zones;
}
@@ -3363,8 +3361,7 @@ static void build_zonelists_in_node_order(pg_data_t *pgdat, int node)
zonelist = &pgdat->node_zonelists[0];
for (j = 0; zonelist->_zonerefs[j].zone != NULL; j++)
;
- j = build_zonelists_node(NODE_DATA(node), zonelist, j,
- MAX_NR_ZONES - 1);
+ j = build_zonelists_node(NODE_DATA(node), zonelist, j);
zonelist->_zonerefs[j].zone = NULL;
zonelist->_zonerefs[j].zone_idx = 0;
}
@@ -3378,7 +3375,7 @@ static void build_thisnode_zonelists(pg_data_t *pgdat)
struct zonelist *zonelist;
zonelist = &pgdat->node_zonelists[1];
- j = build_zonelists_node(pgdat, zonelist, 0, MAX_NR_ZONES - 1);
+ j = build_zonelists_node(pgdat, zonelist, 0);
zonelist->_zonerefs[j].zone = NULL;
zonelist->_zonerefs[j].zone_idx = 0;
}
@@ -3586,7 +3583,7 @@ static void build_zonelists(pg_data_t *pgdat)
local_node = pgdat->node_id;
zonelist = &pgdat->node_zonelists[0];
- j = build_zonelists_node(pgdat, zonelist, 0, MAX_NR_ZONES - 1);
+ j = build_zonelists_node(pgdat, zonelist, 0);
/*
* Now we build the zonelist so that it contains the zones
@@ -3599,14 +3596,12 @@ static void build_zonelists(pg_data_t *pgdat)
for (node = local_node + 1; node < MAX_NUMNODES; node++) {
if (!node_online(node))
continue;
- j = build_zonelists_node(NODE_DATA(node), zonelist, j,
- MAX_NR_ZONES - 1);
+ j = build_zonelists_node(NODE_DATA(node), zonelist, j);
}
for (node = 0; node < local_node; node++) {
if (!node_online(node))
continue;
- j = build_zonelists_node(NODE_DATA(node), zonelist, j,
- MAX_NR_ZONES - 1);
+ j = build_zonelists_node(NODE_DATA(node), zonelist, j);
}
zonelist->_zonerefs[j].zone = NULL;