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mm: page_alloc: use word-based accesses for get/set pageblock bitmaps
[platform/adaptation/renesas_rcar/renesas_kernel.git]
/
include
/
linux
/
mmzone.h
diff --git
a/include/linux/mmzone.h
b/include/linux/mmzone.h
index
9b61b9b
..
e6800f0
100644
(file)
--- a/
include/linux/mmzone.h
+++ b/
include/linux/mmzone.h
@@
-75,9
+75,13
@@
enum {
extern int page_group_by_mobility_disabled;
extern int page_group_by_mobility_disabled;
+#define NR_MIGRATETYPE_BITS (PB_migrate_end - PB_migrate + 1)
+#define MIGRATETYPE_MASK ((1UL << NR_MIGRATETYPE_BITS) - 1)
+
static inline int get_pageblock_migratetype(struct page *page)
{
static inline int get_pageblock_migratetype(struct page *page)
{
- return get_pageblock_flags_group(page, PB_migrate, PB_migrate_end);
+ BUILD_BUG_ON(PB_migrate_end - PB_migrate != 2);
+ return get_pageblock_flags_mask(page, PB_migrate_end, MIGRATETYPE_MASK);
}
struct free_area {
}
struct free_area {