From: sh_def@163.com <sh_def@163.com>
Date: Thu, 31 Dec 2020 22:04:09 +0000 (+0000)
Subject: mm/page_reporting: use list_entry_is_head() in page_reporting_cycle()
X-Git-Tag: howlett/maple_spf/20210104~158
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a168fae5c5d2d75b4d4df5133ac2ac9c09ffb81d;p=users%2Fjedix%2Flinux-maple.git

mm/page_reporting: use list_entry_is_head() in page_reporting_cycle()

Replace '&next->lru != list' with list_entry_is_head().  No functional
change.

Link: https://lkml.kernel.org/r/20201222182735.GA1257912@ubuntu-A520I-AC
Signed-off-by: sh <sh_def@163.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/page_reporting.c b/mm/page_reporting.c
index cd8e13d41df43..c50d93ffa2526 100644
--- a/mm/page_reporting.c
+++ b/mm/page_reporting.c
@@ -211,7 +211,7 @@ page_reporting_cycle(struct page_reporting_dev_info *prdev, struct zone *zone,
 	}
 
 	/* Rotate any leftover pages to the head of the freelist */
-	if (&next->lru != list && !list_is_first(&next->lru, list))
+	if (!list_entry_is_head(next, list, lru) && !list_is_first(&next->lru, list))
 		list_rotate_to_front(&next->lru, list);
 
 	spin_unlock_irq(&zone->lock);