From 1fcf0a561cd09d7fb7f7afa2ddfe05f72f32050e Mon Sep 17 00:00:00 2001 From: Pingfan Liu Date: Thu, 11 Jul 2019 20:54:49 -0700 Subject: [PATCH] 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: Pingfan Liu Acked-by: Michal Hocko Reviewed-by: Oscar Salvador Reviewed-by: Anshuman Khandual Cc: Qian Cai Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/page-isolation.h | 2 +- mm/page_isolation.c | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h index 280ae96dc4c3..1099c2fee20f 100644 --- 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 index e3638a5bafff..89c19c0feadb 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -230,7 +230,7 @@ undo: /* * 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. -- 2.30.2