On Mon, Aug 17, 2020 at 11:35:29AM +0200, David Hildenbrand wrote: >On 17.08.20 10:48, Wei Yang wrote: >> If "page" is the list head, list_for_each_entry_safe() would stop >> iteration. >> >> Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxxxxxxxxxx> >> --- >> 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 */ >> > >Is this a fix or a cleanup? If it's a fix, can this be reproduced easily >and what ere the effects? > I think this is a cleanup. I am not sure why you ask this, since the check must be true when the iteration continues. >-- >Thanks, > >David / dhildenb -- Wei Yang Help you, Help me
