diff options
| -rw-r--r-- | include/linux/mmzone.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 9f274a687c7e..451eaa13bc28 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -637,9 +637,10 @@ static inline int is_normal_idx(enum zone_type idx) static inline int is_highmem(struct zone *zone) { #ifdef CONFIG_HIGHMEM - int zone_idx = zone - zone->zone_pgdat->node_zones; - return zone_idx == ZONE_HIGHMEM || - (zone_idx == ZONE_MOVABLE && zone_movable_is_highmem()); + int zone_off = (char *)zone - (char *)zone->zone_pgdat->node_zones; + return zone_off == ZONE_HIGHMEM * sizeof(*zone) || + (zone_off == ZONE_MOVABLE * sizeof(*zone) && + zone_movable_is_highmem()); #else return 0; #endif |