diff options
Diffstat (limited to 'include/linux/gfp.h')
| -rw-r--r-- | include/linux/gfp.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 313dfe9b443..8b2eab90abb 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -11,7 +11,7 @@ struct vm_area_struct; /* * GFP bitmasks.. */ -/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low two bits) */ +/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low three bits) */ #define __GFP_DMA ((__force gfp_t)0x01u) #define __GFP_HIGHMEM ((__force gfp_t)0x02u) #ifdef CONFIG_DMA_IS_DMA32 @@ -74,7 +74,12 @@ struct vm_area_struct; #define GFP_DMA32 __GFP_DMA32 -#define gfp_zone(mask) ((__force int)((mask) & (__force gfp_t)GFP_ZONEMASK)) +static inline int gfp_zone(gfp_t gfp) +{ + int zone = GFP_ZONEMASK & (__force int) gfp; + BUG_ON(zone >= GFP_ZONETYPES); + return zone; +} /* * There is only one page-allocator function, and two main namespaces to |