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-rw-r--r--include/linux/mmzone.h2
-rw-r--r--mm/memory_hotplug.c23
-rw-r--r--mm/page_alloc.c8
3 files changed, 8 insertions, 25 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index fc39f85d273c..976a1202bec1 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -772,7 +772,7 @@ enum memmap_context {
MEMMAP_EARLY,
MEMMAP_HOTPLUG,
};
-extern int init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
+extern void init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
unsigned long size);
extern void lruvec_init(struct lruvec *lruvec);
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b63d7d1239df..b93c88125766 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -348,27 +348,20 @@ static void fix_zone_id(struct zone *zone, unsigned long start_pfn,
set_page_links(pfn_to_page(pfn), zid, nid, pfn);
}
-/* Can fail with -ENOMEM from allocating a wait table with vmalloc() or
- * alloc_bootmem_node_nopanic()/memblock_virt_alloc_node_nopanic() */
-static int __ref ensure_zone_is_initialized(struct zone *zone,
+static void __ref ensure_zone_is_initialized(struct zone *zone,
unsigned long start_pfn, unsigned long num_pages)
{
if (!zone_is_initialized(zone))
- return init_currently_empty_zone(zone, start_pfn, num_pages);
-
- return 0;
+ init_currently_empty_zone(zone, start_pfn, num_pages);
}
static int __meminit move_pfn_range_left(struct zone *z1, struct zone *z2,
unsigned long start_pfn, unsigned long end_pfn)
{
- int ret;
unsigned long flags;
unsigned long z1_start_pfn;
- ret = ensure_zone_is_initialized(z1, start_pfn, end_pfn - start_pfn);
- if (ret)
- return ret;
+ ensure_zone_is_initialized(z1, start_pfn, end_pfn - start_pfn);
pgdat_resize_lock(z1->zone_pgdat, &flags);
@@ -404,13 +397,10 @@ out_fail:
static int __meminit move_pfn_range_right(struct zone *z1, struct zone *z2,
unsigned long start_pfn, unsigned long end_pfn)
{
- int ret;
unsigned long flags;
unsigned long z2_end_pfn;
- ret = ensure_zone_is_initialized(z2, start_pfn, end_pfn - start_pfn);
- if (ret)
- return ret;
+ ensure_zone_is_initialized(z2, start_pfn, end_pfn - start_pfn);
pgdat_resize_lock(z1->zone_pgdat, &flags);
@@ -481,12 +471,9 @@ static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn)
int nid = pgdat->node_id;
int zone_type;
unsigned long flags, pfn;
- int ret;
zone_type = zone - pgdat->node_zones;
- ret = ensure_zone_is_initialized(zone, phys_start_pfn, nr_pages);
- if (ret)
- return ret;
+ ensure_zone_is_initialized(zone, phys_start_pfn, nr_pages);
pgdat_resize_lock(zone->zone_pgdat, &flags);
grow_zone_span(zone, phys_start_pfn, phys_start_pfn + nr_pages);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2302f250d6b1..73f854344735 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5528,7 +5528,7 @@ static __meminit void zone_pcp_init(struct zone *zone)
zone_batchsize(zone));
}
-int __meminit init_currently_empty_zone(struct zone *zone,
+void __meminit init_currently_empty_zone(struct zone *zone,
unsigned long zone_start_pfn,
unsigned long size)
{
@@ -5546,8 +5546,6 @@ int __meminit init_currently_empty_zone(struct zone *zone,
zone_init_free_lists(zone);
zone->initialized = 1;
-
- return 0;
}
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
@@ -6005,7 +6003,6 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat)
{
enum zone_type j;
int nid = pgdat->node_id;
- int ret;
pgdat_resize_init(pgdat);
#ifdef CONFIG_NUMA_BALANCING
@@ -6087,8 +6084,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat)
set_pageblock_order();
setup_usemap(pgdat, zone, zone_start_pfn, size);
- ret = init_currently_empty_zone(zone, zone_start_pfn, size);
- BUG_ON(ret);
+ init_currently_empty_zone(zone, zone_start_pfn, size);
memmap_init(size, nid, j, zone_start_pfn);
}
}