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authorWei Yang <richard.weiyang@linux.alibaba.com>2020-10-16 05:09:49 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-16 20:11:18 +0200
commit58f6f03497164445edaafbcf421dff712155ca7f (patch)
treec156af09d2d8ffcd4357cb34af7ec929a3128461
parentmm/slab.h: remove duplicate include (diff)
downloadlinux-58f6f03497164445edaafbcf421dff712155ca7f.tar.xz
linux-58f6f03497164445edaafbcf421dff712155ca7f.zip
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 <richard.weiyang@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Link: http://lkml.kernel.org/r/20200818084448.33969-1-richard.weiyang@linux.alibaba.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-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 */