diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/gfp.h | 17 | ||||
| -rw-r--r-- | include/linux/mmzone.h | 14 |
2 files changed, 25 insertions, 6 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h index bc68dd9a6d41..12a90a191c11 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -98,22 +98,29 @@ struct vm_area_struct; static inline enum zone_type gfp_zone(gfp_t flags) { + int base = 0; + +#ifdef CONFIG_NUMA + if (flags & __GFP_THISNODE) + base = MAX_NR_ZONES; +#endif + #ifdef CONFIG_ZONE_DMA if (flags & __GFP_DMA) - return ZONE_DMA; + return base + ZONE_DMA; #endif #ifdef CONFIG_ZONE_DMA32 if (flags & __GFP_DMA32) - return ZONE_DMA32; + return base + ZONE_DMA32; #endif if ((flags & (__GFP_HIGHMEM | __GFP_MOVABLE)) == (__GFP_HIGHMEM | __GFP_MOVABLE)) - return ZONE_MOVABLE; + return base + ZONE_MOVABLE; #ifdef CONFIG_HIGHMEM if (flags & __GFP_HIGHMEM) - return ZONE_HIGHMEM; + return base + ZONE_HIGHMEM; #endif - return ZONE_NORMAL; + return base + ZONE_NORMAL; } /* diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index f21e5951038b..f6167f2fd7fb 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -324,6 +324,17 @@ struct zone { #define MAX_ZONES_PER_ZONELIST (MAX_NUMNODES * MAX_NR_ZONES) #ifdef CONFIG_NUMA + +/* + * The NUMA zonelists are doubled becausse we need zonelists that restrict the + * allocations to a single node for GFP_THISNODE. + * + * [0 .. MAX_NR_ZONES -1] : Zonelists with fallback + * [MAZ_NR_ZONES ... MAZ_ZONELISTS -1] : No fallback (GFP_THISNODE) + */ +#define MAX_ZONELISTS (2 * MAX_NR_ZONES) + + /* * We cache key information from each zonelist for smaller cache * footprint when scanning for free pages in get_page_from_freelist(). @@ -389,6 +400,7 @@ struct zonelist_cache { unsigned long last_full_zap; /* when last zap'd (jiffies) */ }; #else +#define MAX_ZONELISTS MAX_NR_ZONES struct zonelist_cache; #endif @@ -455,7 +467,7 @@ extern struct page *mem_map; struct bootmem_data; typedef struct pglist_data { struct zone node_zones[MAX_NR_ZONES]; - struct zonelist node_zonelists[MAX_NR_ZONES]; + struct zonelist node_zonelists[MAX_ZONELISTS]; int nr_zones; #ifdef CONFIG_FLAT_NODE_MEM_MAP struct page *node_mem_map; |