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: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 12c98df..3b6fb71 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1200,13 +1200,13 @@
* 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 */
diff --git a/mm/mmzone.c b/mm/mmzone.c
index 7d87ebb..52687fb 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -72,16 +72,16 @@
}
#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 */
