From 58f6f03497164445edaafbcf421dff712155ca7f Mon Sep 17 00:00:00 2001 From: Wei Yang Date: Thu, 15 Oct 2020 20:09:49 -0700 Subject: [PATCH] mm/page_reporting.c: drop stale list head check in page_reporting_cycle list_for_each_entry_safe() guarantees that we will never stumble over the list head; "&page->lru != list" will always evaluate to true. Let's simplify. [david@redhat.com: Changelog refinements] Signed-off-by: Wei Yang Signed-off-by: Andrew Morton Reviewed-by: David Hildenbrand Reviewed-by: Alexander Duyck Link: http://lkml.kernel.org/r/20200818084448.33969-1-richard.weiyang@linux.alibaba.com Signed-off-by: Linus Torvalds --- mm/page_reporting.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_reporting.c b/mm/page_reporting.c index 3bbd471cfc81..aaaa3605123d 100644 --- a/mm/page_reporting.c +++ b/mm/page_reporting.c @@ -178,7 +178,7 @@ page_reporting_cycle(struct page_reporting_dev_info *prdev, struct zone *zone, * the new head of the free list before we release the * zone lock. */ - if (&page->lru != list && !list_is_first(&page->lru, list)) + if (!list_is_first(&page->lru, list)) list_rotate_to_front(&page->lru, list); /* release lock before waiting on report processing */