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=-10.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,USER_AGENT_GIT 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 B4352C433E0 for ; Mon, 10 Aug 2020 14:59:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8EBD921744 for ; Mon, 10 Aug 2020 14:59:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Vmv4SoRl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727804AbgHJO7W (ORCPT ); Mon, 10 Aug 2020 10:59:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727088AbgHJO7E (ORCPT ); Mon, 10 Aug 2020 10:59:04 -0400 Received: from mail-pj1-x1044.google.com (mail-pj1-x1044.google.com [IPv6:2607:f8b0:4864:20::1044]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6E2A8C061787; Mon, 10 Aug 2020 07:59:04 -0700 (PDT) Received: by mail-pj1-x1044.google.com with SMTP id d4so5398694pjx.5; Mon, 10 Aug 2020 07:59:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=SHSkT38oPDjdbo6Pdfg3IfSW8k0GGeohQthylBq7Wn0=; b=Vmv4SoRlK/lnjdXh8GMWKAyKi9m2lK4HXA+zWWINhSGp8Y3XQmZ4R3y1ZqW5lybs0y Tte/X+X5OmI4N4WUk7ro0Z7+wDelXCVEABSXreridok4vVcIc8ZHKyBOJHip4P4Ct+14 uQR4qtWymrwj7WYgkUkQ4tDXmPCnBmwrMPHpXeUbsFsJDprGHmr0qvfrhg+VLYBhaqj4 oL4/CX6tcS+wbwgqC2gT3ro4gWEbUwLWtu3PjSY6FYk361od1lv23yPs3jY166E8KfLZ 3K862j2OJugJ+y+bI3glgulvjLtRG3wkXdaa798tqSfSUzPRVJey0YUrHqpmkIpUvMkP mWcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=SHSkT38oPDjdbo6Pdfg3IfSW8k0GGeohQthylBq7Wn0=; b=NpC5AmDxZHPGdos5J3SwRD77WAl/V/PT0T3rCTSm56IhjPrXut7pXknHOCaUG0pWnX iQ7mIxSv7TIfquH4+9ebjYer17D/lsy5/KBHAhtXD8XpTKouvhpDdTu1Ww4N0T/5YaWL 1kXEJ+0Mrgkj6YArErRWCX1FmgUCggEuChzUVSjlX2sEXZRuf/DtBKkER8VwUwmt4bI9 vLqcackx44/hL3JtGOIljsvRJdoAl/PpLxjs04PrgFiY2fVVK58+90K6TNZRSI4DvP5z Hw0izWKgYBunCyLBiKZ7qm/0qc3Z6fIwp+VAsr0WZ0F6cNcXJ3Xx1dWqcO+Tj1OliaB5 JvcA== X-Gm-Message-State: AOAM531B7sxDJjmtI9oVgzKmJ0nn1QslN3hluiCSaXs3eH1ll0pIhxcY 0KeP4vJ2v4R8ZuSzFkada+U4uMin5uw= X-Google-Smtp-Source: ABdhPJwrSqQIv+MnSLjA8lx5FF9Up7X45VlVn660QsB4QWfz9tQ7cK6O/q1alWL7bU4tO54E7t7yBg== X-Received: by 2002:a17:90a:cc6:: with SMTP id 6mr28424689pjt.2.1597071543924; Mon, 10 Aug 2020 07:59:03 -0700 (PDT) Received: from localhost.localdomain ([124.170.227.101]) by smtp.gmail.com with ESMTPSA id o192sm25631162pfg.81.2020.08.10.07.59.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Aug 2020 07:59:03 -0700 (PDT) From: Eugene Lubarsky To: linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, adobriyan@gmail.com, avagin@gmail.com, dsahern@gmail.com Subject: [RFC PATCH 2/5] fs/proc: Introduce /proc/all/statm Date: Tue, 11 Aug 2020 00:58:49 +1000 Message-Id: <20200810145852.9330-3-elubarsky.linux@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200810145852.9330-1-elubarsky.linux@gmail.com> References: <20200810145852.9330-1-elubarsky.linux@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-api-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org Returns statm lines for all visible processes with prepended PIDs. Signed-off-by: Eugene Lubarsky --- fs/proc/base.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/fs/proc/base.c b/fs/proc/base.c index e0f60a1528b7..8396a38ba7d2 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -3884,6 +3884,18 @@ static int proc_all_stat(struct seq_file *m, void *v) return proc_tgid_stat(m, iter->ns, iter->tgid_iter.task->thread_pid, iter->tgid_iter.task); } +static int proc_all_statm(struct seq_file *m, void *v) +{ + struct all_iter *iter = (struct all_iter *) v; + struct pid_namespace *ns = iter->ns; + struct task_struct *task = iter->tgid_iter.task; + struct pid *pid = task->thread_pid; + + seq_put_decimal_ull(m, "", pid_nr_ns(pid, ns)); + seq_puts(m, " "); + return proc_pid_statm(m, ns, pid, task); +} + #define PROC_ALL_OPS(NAME) static const struct seq_operations proc_all_##NAME##_ops = { \ .start = proc_all_start, \ @@ -3893,6 +3905,7 @@ static int proc_all_stat(struct seq_file *m, void *v) } PROC_ALL_OPS(stat); +PROC_ALL_OPS(statm); #define PROC_ALL_CREATE(NAME) \ do { \ @@ -3908,4 +3921,5 @@ void __init proc_all_init(void) return; PROC_ALL_CREATE(stat); + PROC_ALL_CREATE(statm); } -- 2.25.1