diff options
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 04b1636a970b..d71ff763c9df 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -146,6 +146,7 @@ enum zone_type { */ ZONE_HIGHMEM, #endif + ZONE_MOVABLE, MAX_NR_ZONES }; @@ -167,6 +168,7 @@ enum zone_type { + defined(CONFIG_ZONE_DMA32) \ + 1 \ + defined(CONFIG_HIGHMEM) \ + + 1 \ ) #if __ZONE_COUNT < 2 #define ZONES_SHIFT 0 @@ -499,10 +501,22 @@ static inline int populated_zone(struct zone *zone) return (!!zone->present_pages); } +extern int movable_zone; + +static inline int zone_movable_is_highmem(void) +{ +#if defined(CONFIG_HIGHMEM) && defined(CONFIG_ARCH_POPULATES_NODE_MAP) + return movable_zone == ZONE_HIGHMEM; +#else + return 0; +#endif +} + static inline int is_highmem_idx(enum zone_type idx) { #ifdef CONFIG_HIGHMEM - return (idx == ZONE_HIGHMEM); + return (idx == ZONE_HIGHMEM || + (idx == ZONE_MOVABLE && zone_movable_is_highmem())); #else return 0; #endif @@ -522,7 +536,9 @@ static inline int is_normal_idx(enum zone_type idx) static inline int is_highmem(struct zone *zone) { #ifdef CONFIG_HIGHMEM - return zone == zone->zone_pgdat->node_zones + ZONE_HIGHMEM; + int zone_idx = zone - zone->zone_pgdat->node_zones; + return zone_idx == ZONE_HIGHMEM || + (zone_idx == ZONE_MOVABLE && zone_movable_is_highmem()); #else return 0; #endif |