Commit 5b80287a authored by Yaowei Bai's avatar Yaowei Bai Committed by Linus Torvalds
Browse files

mm/mmzone.c: memmap_valid_within() can be boolean 



Make memmap_valid_within return bool due to this particular function
only using either one or zero as its return value.

No functional change.

Signed-off-by: default avatarYaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 6219c2a2

include/linux/mmzone.h

+3 −3
Original line number Diff line number Diff line
@@ -1200,13 +1200,13 @@ unsigned long __init node_memmap_size_bytes(int, unsigned long, unsigned long); 
 * the zone and PFN linkages are still valid. This is expensive, but walkers

 * of the full memmap are extremely rare.

 */

int memmap_valid_within(unsigned long pfn,

bool memmap_valid_within(unsigned long pfn,

					struct page *page, struct zone *zone);

#else

static inline int memmap_valid_within(unsigned long pfn,

static inline bool memmap_valid_within(unsigned long pfn,

					struct page *page, struct zone *zone)

{

	return 1;

	return true;

}

#endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */

mm/mmzone.c

+4 −4
Original line number Diff line number Diff line
@@ -72,16 +72,16 @@ struct zoneref *next_zones_zonelist(struct zoneref *z, 
}



#ifdef CONFIG_ARCH_HAS_HOLES_MEMORYMODEL

int memmap_valid_within(unsigned long pfn,

bool memmap_valid_within(unsigned long pfn,

					struct page *page, struct zone *zone)

{

	if (page_to_pfn(page) != pfn)

		return 0;

		return false;



	if (page_zone(page) != zone)

		return 0;

		return false;



	return 1;

	return true;

}

#endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */