Messages in this thread Patch in this message | | | From | Wei Yang <> | Subject | [Patch v2] mm/page_reporting: drop stale list head check in page_reporting_cycle | Date | Tue, 18 Aug 2020 16:44:48 +0800 |
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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.
Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com> Reviewed-by: David Hildenbrand <david@redhat.com> --- 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 */ -- 2.20.1 (Apple Git-117)
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