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authorWei Yang <[email protected]>2020-10-15 20:09:49 -0700
committerLinus Torvalds <[email protected]>2020-10-16 11:11:18 -0700
commit58f6f03497164445edaafbcf421dff712155ca7f (patch)
treec156af09d2d8ffcd4357cb34af7ec929a3128461
parentc7df08f1953bb6cbd61b0c37f825b6e7b4489217 (diff)
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. [[email protected]: Changelog refinements] Signed-off-by: Wei Yang <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Reviewed-by: Alexander Duyck <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--mm/page_reporting.c2
1 files changed, 1 insertions, 1 deletions
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 */