From 236c32eb109696590b7428957eda50cc05e22af8 Mon Sep 17 00:00:00 2001 From: Yang Shi Date: Mon, 14 Dec 2020 19:13:13 -0800 Subject: mm: migrate: clean up migrate_prep{_local} The migrate_prep{_local} never fails, so it is pointless to have return value and check the return value. Link: https://lkml.kernel.org/r/20201113205359.556831-5-shy828301@gmail.com Signed-off-by: Yang Shi Reviewed-by: Zi Yan Cc: Jan Kara Cc: Matthew Wilcox Cc: Mel Gorman Cc: Michal Hocko Cc: Song Liu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/migrate.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'mm/migrate.c') diff --git a/mm/migrate.c b/mm/migrate.c index a7ccda55ca82..76e2a6f3749f 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -62,7 +62,7 @@ * to be migrated using isolate_lru_page(). If scheduling work on other CPUs is * undesirable, use migrate_prep_local() */ -int migrate_prep(void) +void migrate_prep(void) { /* * Clear the LRU lists so pages can be isolated. @@ -71,16 +71,12 @@ int migrate_prep(void) * pages that may be busy. */ lru_add_drain_all(); - - return 0; } /* Do the necessary work of migrate_prep but not if it involves other CPUs */ -int migrate_prep_local(void) +void migrate_prep_local(void) { lru_add_drain(); - - return 0; } int isolate_movable_page(struct page *page, isolate_mode_t mode) -- cgit v1.2.3