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-rw-r--r--include/linux/mmzone.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 2eef8afd3a0f..f509ede317b5 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -88,8 +88,7 @@ static inline bool is_migrate_movable(int mt)
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)
+#define MIGRATETYPE_MASK ((1UL << PB_migratetype_bits) - 1)
#define get_pageblock_migratetype(page) \
get_pfnblock_flags_mask(page, page_to_pfn(page), \