diff options
| author | Zhang Zhen <zhenzhang.zhang@huawei.com> | 2015-04-15 16:12:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 16:35:16 -0700 |
| commit | d7e4a2ea51c1b0ac0b2d53f5ab4a2e878b1c4aec (patch) | |
| tree | d3a3c0f1f5fa70f1134ecd01c1e22621fe50f5ae /include | |
| parent | bdddbcd45fd191a0213e6d2a032eb55d18bd1fc0 (diff) | |
| download | linux-d7e4a2ea51c1b0ac0b2d53f5ab4a2e878b1c4aec.tar.bz2 | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmzone.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 2782df47101e..54d74f6eb233 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -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) { |