From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FED5C433DF for ; Thu, 21 May 2020 23:14:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1C89720825 for ; Thu, 21 May 2020 23:14:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="EJO8Lmra" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730749AbgEUXOC (ORCPT ); Thu, 21 May 2020 19:14:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52626 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730626AbgEUXOC (ORCPT ); Thu, 21 May 2020 19:14:02 -0400 Received: from mail-yb1-xb44.google.com (mail-yb1-xb44.google.com [IPv6:2607:f8b0:4864:20::b44]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 782CCC061A0E for ; Thu, 21 May 2020 16:14:01 -0700 (PDT) Received: by mail-yb1-xb44.google.com with SMTP id g79so3680584ybf.0 for ; Thu, 21 May 2020 16:14:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=prum5QcrbZCO0F65OHvFGChvc11UJdGytJaiM86CTfc=; b=EJO8LmragjkCPmJ41c+po3zpR8kk9FxzpYkfolWjsWm/p7Z1mDP1PIVanxntgtIjlu IIEJgNn+vOewvEKC794pIXsbPqh8K8K8K/z05EU22q84qbvWwXurP8L8pN2CTB1Lxn07 wllQh86f2e/faYICaeOC4O1GSbyjHy6ie2HEZ5z7EIzd2FayPfgAoow1OdWChmponEJE qvX2TW9MTEBvPOGdbNguA6cGVH2G2Atn7Kta5orCn1jcJQ4/e2CD17+qZZDgy5e7Zgt7 TvRbB7OI5BqzzfXt6+2b29plh5CGUZ4d80DMgmw4moH55QZMIUJEtiP0CnYYwk4t5Sck CiRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=prum5QcrbZCO0F65OHvFGChvc11UJdGytJaiM86CTfc=; b=lbwCTDYtucFEsb7O2cPUoMyFhMRdBjMJ1NPEpzvvtWt7z4dG2IVHdrF5F0cHoPJK60 cN77fX0bLOx2A58YcUUoLLBs2SFl6B+bUSCJ8WZrZD9/SN9+zV3mbyDbN1BA/LwwfvJc SuQA86dQQrsaEwVd9bz7X7eygDMUL/tz3Boj/v2tMC+aJuKhgfFCIfaDkHRLzRVOO/kR lwwuLKePwGKxgiSC5XjlQjYOVkZ7GhjPEnS8CVcx30bBn2Ct/eRbeyklguXZRuWWzV0B LG7wKmD5a5hh23Ueyy9ZhusbuDebGE0yIzBi/hJA/AxqiSTigunVB+oVhS5L2WW2OgPt jdBw== X-Gm-Message-State: AOAM533CkCsiPj1bxmHVK28atHZq0MYhZXeVrF9kE6gdxnOIs310Vkp1 RF+MMrfV+TolUImgd7YgkNYllDXPMECh4l03/Seq2NRWT+O0tA== X-Google-Smtp-Source: ABdhPJwyeBZVNqGDDn7EXqfUoPtnSiRN0M0U3xT9gYtJelmdRXVjJEVDRKm0e+Um+Naji4fd1bnb3ChFlyDdmcHH2Ts= X-Received: by 2002:a25:bb42:: with SMTP id b2mr18715117ybk.383.1590102840392; Thu, 21 May 2020 16:14:00 -0700 (PDT) MIME-Version: 1.0 References: <20200521222551.259804-1-irogers@google.com> In-Reply-To: <20200521222551.259804-1-irogers@google.com> From: Ian Rogers Date: Thu, 21 May 2020 16:13:48 -0700 Message-ID: Subject: Re: [PATCH] proc.5: add "wf" to VmFlags in /proc/[pid]/smaps To: Rik van Riel , mtk.manpages@gmail.com Cc: linux-man@vger.kernel.org, LKML , linux-mm@kvack.org, linux-api@vger.kernel.org, nilal@redhat.com, Florian Weimer , =?UTF-8?Q?Colm_MacC=C3=A1rtaigh?= , Mike Kravetz Content-Type: text/plain; charset="UTF-8" Sender: linux-man-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org On Thu, May 21, 2020 at 3:25 PM Ian Rogers wrote: > > This patch documents a flag added in the following kernel commit: > > commit d2cd9ede6e193dd7d88b6d27399e96229a551b19 > Author: Rik van Riel > 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 > Date: Tue Sep 19 20:32:00 2017 +0200 > > madvise.2: Document MADV_WIPEONFORK and MADV_KEEPONFORK > > Signed-off-by: Ian Rogers Doing a quick audit of fs/proc/task_mmu.c having noticed this flag was missing I note: - "mp" isn't documented, only possible with INTEL_MPX - "nl" is documented but not present in show_smap_vma_flags - "um" and "uw" aren't documented Thanks, Ian > --- > 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 >