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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>
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1 changed files with 4 additions and 4 deletions
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@ -842,16 +842,16 @@ static inline int populated_zone(struct zone *zone)
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extern int movable_zone;
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extern int movable_zone;
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#ifdef CONFIG_HIGHMEM
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static inline int zone_movable_is_highmem(void)
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static inline int zone_movable_is_highmem(void)
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{
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{
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#if defined(CONFIG_HIGHMEM) && defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP)
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#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
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return movable_zone == ZONE_HIGHMEM;
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return movable_zone == ZONE_HIGHMEM;
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#elif defined(CONFIG_HIGHMEM)
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return (ZONE_MOVABLE - 1) == ZONE_HIGHMEM;
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#else
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#else
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return 0;
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return (ZONE_MOVABLE - 1) == ZONE_HIGHMEM;
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#endif
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#endif
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}
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}
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#endif
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static inline int is_highmem_idx(enum zone_type idx)
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static inline int is_highmem_idx(enum zone_type idx)
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{
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{
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