diff options
Diffstat (limited to 'mm/memory_hotplug.c')
-rw-r--r-- | mm/memory_hotplug.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 70df5c0d957e..71da5c98c9c1 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c | |||
@@ -26,7 +26,7 @@ | |||
26 | 26 | ||
27 | extern void zonetable_add(struct zone *zone, int nid, int zid, unsigned long pfn, | 27 | extern void zonetable_add(struct zone *zone, int nid, int zid, unsigned long pfn, |
28 | unsigned long size); | 28 | unsigned long size); |
29 | static void __add_zone(struct zone *zone, unsigned long phys_start_pfn) | 29 | static int __add_zone(struct zone *zone, unsigned long phys_start_pfn) |
30 | { | 30 | { |
31 | struct pglist_data *pgdat = zone->zone_pgdat; | 31 | struct pglist_data *pgdat = zone->zone_pgdat; |
32 | int nr_pages = PAGES_PER_SECTION; | 32 | int nr_pages = PAGES_PER_SECTION; |
@@ -34,8 +34,15 @@ static void __add_zone(struct zone *zone, unsigned long phys_start_pfn) | |||
34 | int zone_type; | 34 | int zone_type; |
35 | 35 | ||
36 | zone_type = zone - pgdat->node_zones; | 36 | zone_type = zone - pgdat->node_zones; |
37 | if (!populated_zone(zone)) { | ||
38 | int ret = 0; | ||
39 | ret = init_currently_empty_zone(zone, phys_start_pfn, nr_pages); | ||
40 | if (ret < 0) | ||
41 | return ret; | ||
42 | } | ||
37 | memmap_init_zone(nr_pages, nid, zone_type, phys_start_pfn); | 43 | memmap_init_zone(nr_pages, nid, zone_type, phys_start_pfn); |
38 | zonetable_add(zone, nid, zone_type, phys_start_pfn, nr_pages); | 44 | zonetable_add(zone, nid, zone_type, phys_start_pfn, nr_pages); |
45 | return 0; | ||
39 | } | 46 | } |
40 | 47 | ||
41 | extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn, | 48 | extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn, |
@@ -50,7 +57,11 @@ static int __add_section(struct zone *zone, unsigned long phys_start_pfn) | |||
50 | if (ret < 0) | 57 | if (ret < 0) |
51 | return ret; | 58 | return ret; |
52 | 59 | ||
53 | __add_zone(zone, phys_start_pfn); | 60 | ret = __add_zone(zone, phys_start_pfn); |
61 | |||
62 | if (ret < 0) | ||
63 | return ret; | ||
64 | |||
54 | return register_new_memory(__pfn_to_section(phys_start_pfn)); | 65 | return register_new_memory(__pfn_to_section(phys_start_pfn)); |
55 | } | 66 | } |
56 | 67 | ||