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authorYaowei Bai <baiyaowei@cmss.chinamobile.com>2016-01-15 02:19:00 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-15 03:00:49 +0300
commitc00eb15a8914b8ba84032a36044a5aaf7f71709d (patch)
treedf9fd900dac20444f5e5b6780dba9b95a1bc7515 /include/linux/gfp.h
parent06640290bfc6688062387f915c5df094e9872133 (diff)
downloadlinux-c00eb15a8914b8ba84032a36044a5aaf7f71709d.tar.xz
mm/zonelist: enumerate zonelists array index
Hardcoding index to zonelists array in gfp_zonelist() is not a good idea, let's enumerate it to improve readability. No functional change. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix CONFIG_NUMA=n build] [n-horiguchi@ah.jp.nec.com: fix warning in comparing enumerator] Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/gfp.h')
-rw-r--r--include/linux/gfp.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 1dd59abe541d..91f74e741aa2 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -384,10 +384,11 @@ static inline enum zone_type gfp_zone(gfp_t flags)
static inline int gfp_zonelist(gfp_t flags)
{
- if (IS_ENABLED(CONFIG_NUMA) && unlikely(flags & __GFP_THISNODE))
- return 1;
-
- return 0;
+#ifdef CONFIG_NUMA
+ if (unlikely(flags & __GFP_THISNODE))
+ return ZONELIST_NOFALLBACK;
+#endif
+ return ZONELIST_FALLBACK;
}
/*