Commit d38ac97f authored by Wei Yang's avatar Wei Yang Committed by Linus Torvalds
Browse files

mm/page_alloc.c: replace the definition of NR_MIGRATETYPE_BITS with PB_migratetype_bits 



We already have the definition of PB_migratetype_bits and current
NR_MIGRATETYPE_BITS looks like a cyclic definition.

Just use PB_migratetype_bits is enough.

Signed-off-by: default avatarWei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/r/20200623124201.8199-1-richard.weiyang@linux.alibaba.com


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 83919535

include/linux/mmzone.h

+1 −2
Original line number Diff line number Diff line
@@ -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),		\