linux-kernel - [PATCH] mm: vmscan: fix documentation for page_check

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Message-ID: <1646925640-21324-1-git-send-email-quic_charante@quicinc.com>
Date:   Thu, 10 Mar 2022 20:50:40 +0530
From:   Charan Teja Kalla <quic_charante@...cinc.com>
To:     <akpm@...ux-foundation.org>, <iamjoonsoo.kim@....com>,
        <mhocko@...e.com>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <trivial@...nel.org>, Charan Teja Kalla <quic_charante@...cinc.com>
Subject: [PATCH] mm: vmscan: fix documentation for page_check_references()

The commit b518154e59aa ("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.

Signed-off-by: Charan Teja Kalla <quic_charante@...cinc.com>
---
 mm/vmscan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 59b14e0..aab6f6e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1398,7 +1398,7 @@ 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
-- 
2.7.4