linux-kernel - [PATCH] proc.5: add "wf" to VmFlags in /proc/[pid]/smaps

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Message-Id: <20200521222551.259804-1-irogers@google.com>
Date:   Thu, 21 May 2020 15:25:51 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Rik van Riel <riel@...hat.com>, mtk.manpages@...il.com
Cc:     linux-man@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-api@...r.kernel.org, nilal@...hat.com,
        Florian Weimer <fweimer@...hat.com>,
        "Colm MacCártaigh" <colm@...costs.net>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Ian Rogers <irogers@...gle.com>
Subject: [PATCH] proc.5: add "wf" to VmFlags in /proc/[pid]/smaps

This patch documents a flag added in the following kernel commit:

commit d2cd9ede6e193dd7d88b6d27399e96229a551b19
Author: Rik van Riel <riel@...hat.com>
Date:   Wed Sep 6 16:25:15 2017 -0700

    mm,fork: introduce MADV_WIPEONFORK

This was already documented in man2/madvise.2 in the commit:

commit c0c4f6c29c494c466f3a2a6273c5b55b76a72927
Author: Rik van Riel <riel@...hat.com>
Date:   Tue Sep 19 20:32:00 2017 +0200

    madvise.2: Document MADV_WIPEONFORK and MADV_KEEPONFORK

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 man5/proc.5 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/man5/proc.5 b/man5/proc.5
index 46d603f28..3e5b91af0 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -2020,6 +2020,7 @@ encoded using the following two-letter codes:
     ht  - area uses huge tlb pages
     nl  - non-linear mapping
     ar  - architecture specific flag
+    wf  - wipe on fork
     dd  - do not include area into core dump
     sd  - soft-dirty flag
     mm  - mixed map area
-- 
2.27.0.rc0.183.gde8f92d652-goog