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Commit 1fcf0a56 authored by Pingfan Liu's avatar Pingfan Liu Committed by Linus Torvalds
Browse files

mm/page_isolation.c: change the prototype of undo_isolate_page_range() 

undo_isolate_page_range() never fails, so no need to return value.

Link: http://lkml.kernel.org/r/1562075604-8979-1-git-send-email-kernelfans@gmail.com


Signed-off-by: default avatarPingfan Liu <kernelfans@gmail.com>
Acked-by: default avatarMichal Hocko <mhocko@suse.com>
Reviewed-by: default avatarOscar Salvador <osalvador@suse.de>
Reviewed-by: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
Cc: Qian Cai <cai@lca.pw>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ac1c3e49

include/linux/page-isolation.h

+1 −1
Original line number Diff line number Diff line
@@ -50,7 +50,7 @@ start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, 
 * Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.

 * target range is [start_pfn, end_pfn)

 */

int

void

undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,

			unsigned migratetype);

mm/page_isolation.c

+1 −2
Original line number Diff line number Diff line
@@ -230,7 +230,7 @@ int start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, 
/*

 * Make isolated pages available again.

 */

int undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,

void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,

			    unsigned migratetype)

{

	unsigned long pfn;
@@ -247,7 +247,6 @@ int undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, 
			continue;

		unset_migratetype_isolate(page, migratetype);

	}

	return 0;

}

/*

 * Test all pages in the range is free(means isolated) or not.