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mm/zonelist: enumerate zonelists array index

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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>
This commit is contained in:
Yaowei Bai
2016-01-14 15:19:00 -08:00
committed by Linus Torvalds
parent 06640290bf
commit c00eb15a89
3 changed files with 18 additions and 20 deletions
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9
include/linux/gfp.h
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@@ -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;
}
/*