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authorYang Shi <shy828301@gmail.com>2020-12-15 06:13:13 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 23:13:45 +0300
commit236c32eb109696590b7428957eda50cc05e22af8 (patch)
treea5585ded73d7e9a1d5ce66732f5911a47302f727 /mm/migrate.c
parentc77c5cbafe549eb330e8909861a3e16cbda2c848 (diff)
downloadlinux-236c32eb109696590b7428957eda50cc05e22af8.tar.xz
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 <shy828301@gmail.com> Reviewed-by: Zi Yan <ziy@nvidia.com> Cc: Jan Kara <jack@suse.cz> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Hocko <mhocko@suse.com> Cc: Song Liu <songliubraving@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/migrate.c')
-rw-r--r--mm/migrate.c8
1 files changed, 2 insertions, 6 deletions
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)