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mm: refactor zone_movable_is_highmem() 

All callers of zone_movable_is_highmem are under #ifdef CONFIG_HIGHMEM,
so the else branch return 0 is not needed.

Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Zhang Zhen 2015-04-15 16:12:57 -07:00 committed by Linus Torvalds
parent bdddbcd45f
commit d7e4a2ea51
1 changed files with 4 additions and 4 deletions
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8
include/linux/mmzone.h
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@ -842,16 +842,16 @@ static inline int populated_zone(struct zone *zone)
extern int movable_zone;
#ifdef CONFIG_HIGHMEM
static inline int zone_movable_is_highmem(void)
{
#if defined(CONFIG_HIGHMEM) && defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP)
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
return movable_zone == ZONE_HIGHMEM;
#elif defined(CONFIG_HIGHMEM)
return (ZONE_MOVABLE - 1) == ZONE_HIGHMEM;
#else
return 0;
return (ZONE_MOVABLE - 1) == ZONE_HIGHMEM;
#endif
}
#endif
static inline int is_highmem_idx(enum zone_type idx)
{