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/[email protected] Signed-off-by: Pingfan Liu <[email protected]> Acked-by: Michal Hocko <[email protected]> Reviewed-by: Oscar Salvador <[email protected]> Reviewed-by: Anshuman Khandual <[email protected]> Cc: Qian Cai <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
ambv · Jul 12, 2019 · 1fcf0a5 · 1fcf0a5
1 parent ac1c3e4
commit 1fcf0a5
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Showing 2 changed files with 2 additions and 3 deletions.
diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
@@ -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);
 

diff --git a/mm/page_isolation.c b/mm/page_isolation.c
@@ -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.