Commit 5df6d792 authored by sh_def@163.com's avatar sh_def@163.com Committed by Linus Torvalds
Browse files

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: default avatarsh <sh_def@163.com>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Reviewed-by: default avatarDavid Hildenbrand <david@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1583aa27

mm/page_reporting.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -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 */

	/* 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);

		list_rotate_to_front(&next->lru, list);





	spin_unlock_irq(&zone->lock);

	spin_unlock_irq(&zone->lock);