mm: add a reminder comment for __GFP_BITS_SHIFT

[can-eth-gw-linux.git] / include / linux / gfp.h

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index d0a79678f169f8c9a7675e4343419975cbb29142..f74856e17e488deb9698f610511fcfed44f35ba3 100644 (file)
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -34,6 +34,7 @@ struct vm_area_struct;
 #define ___GFP_NO_KSWAPD       0x400000u
 #define ___GFP_OTHER_NODE      0x800000u
 #define ___GFP_WRITE           0x1000000u
+/* If the above are modified, __GFP_BITS_SHIFT may need updating */
 
 /*
  * GFP bitmasks..
@@ -266,7 +267,7 @@ static inline enum zone_type gfp_zone(gfp_t flags)
 
 static inline int gfp_zonelist(gfp_t flags)
 {
-       if (NUMA_BUILD && unlikely(flags & __GFP_THISNODE))
+       if (IS_ENABLED(CONFIG_NUMA) && unlikely(flags & __GFP_THISNODE))
                return 1;
 
        return 0;