Commit 96bd3e79 authored Mar 22, 2022 by Charan Teja Kalla Committed by Linus Torvalds Mar 22, 2022

mm: vmscan: fix documentation for page_check_references()

Commit b518154e ("mm/vmscan: protect the workingset on anonymous
LRU") requires to look twice for both mapped anon/file pages are used
more than once to take the decission of reclaim or activation.  Correct
the documentation accordingly.

Link: https://lkml.kernel.org/r/1646925640-21324-1-git-send-email-quic_charante@quicinc.com


Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 2386eef2

mm/vmscan.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1385,7 +1385,7 @@ static enum page_references page_check_references(struct page *page,
		/*
		* All mapped pages start out with page table
		* references from the instantiating fault, so we need
		* to look twice if a mapped file page is used more
		* to look twice if a mapped file/anon page is used more
		* than once.
		*
		* Mark it and spare it for another trip around the