From: Wei Yang Date: Fri, 16 Oct 2020 03:09:49 +0000 (-0700) Subject: mm/page_reporting.c: drop stale list head check in page_reporting_cycle X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=58f6f03497164445edaafbcf421dff712155ca7f;p=linux.git 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 --- diff --git a/mm/page_reporting.c b/mm/page_reporting.c index 3bbd471cfc814..aaaa3605123de 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 */