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=-5.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, USER_AGENT_MUTT autolearn=ham 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 3F484C282C4 for ; Sat, 9 Feb 2019 11:00:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0481B21773 for ; Sat, 9 Feb 2019 11:00:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nmvVejGS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726906AbfBIK4S (ORCPT ); Sat, 9 Feb 2019 05:56:18 -0500 Received: from mail-wm1-f47.google.com ([209.85.128.47]:38074 "EHLO mail-wm1-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725933AbfBIK4S (ORCPT ); Sat, 9 Feb 2019 05:56:18 -0500 Received: by mail-wm1-f47.google.com with SMTP id v26so7739657wmh.3 for ; Sat, 09 Feb 2019 02:56:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=W2Qcxf/+h9zIBPNrDI4K1i8iwM4Q3fgZNla8lT1itvI=; b=nmvVejGSQiWz0fYyC08xbIUaFSXhTismLq0gHzs6pXB+EB1ysO31QM8tZsdm02qMgq 34c+pTuiBumaKTFob4goxfW3odfmtzcfTgVBrJNor1TMex4IAnn4FIn1nsLwqJClLL33 xQ6I3++dLVPoRBxkkpduXgDoYlKO0xpHdYsOz2EW7aRa4k9YwhELIwGLOhdnLJOG3A5+ S0Yj3XKJdkOGNvfL6bZwGH1zdo7FzJfwYjVjukmnRrdlcax230XcjJoEBuWBWqpTUXpy mbKwx93qlZ3ky+IrVFE3s/RsuRfnd1TPVKx+vFdiZWkL4GLfQ/WZLJ3W0jRKt+9IFVqo AwLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=W2Qcxf/+h9zIBPNrDI4K1i8iwM4Q3fgZNla8lT1itvI=; b=ASWAPBUSIp69rlD06c8Alfjo+D2annzupkn2QFbSu8eQvWy+EbGTQNTKeIK8WB/g36 FJSAJCi2ZOBKAOWw1e4LSQxSXm43XPE8EbCaRNPFhnb9zeCZm6vBTYo0vZpBTB+Gh/6z Q7Ew/0M6FL9fpPlMPWDo+IhxG4HPUQF6/payiT619g3yLHqPcCfN8oQ4p5yr7dnqKdBc FieYfxJt7IroGDWjdS0/qVp2EzGRUpBHrlZVPPInRFCUrkxL8rZ5F0Zoj12s+RCsygv6 BDXn3ZQ/YIOh6YeuviFOxsQ5Te4ag53HO00Jqisv2t5PrFnkADMjbCT/ICzjShTQR/Rj nJqQ== X-Gm-Message-State: AHQUAuZ8Rrikv3r/2uqNr0e7LFPCo9BW/NNnuiKw9eSy+uMhoiAkS/Bw bYI9YO7jb5RfRTyYvXKFKnb1DVU= X-Google-Smtp-Source: AHgI3Iaqcd07dOYM2duuWa+/EoFm5ASpVyfggDAWEAD5ijKRmt25khNNTObHwjfHGtqQ5gP92I8Ahg== X-Received: by 2002:a5d:4303:: with SMTP id h3mr13893617wrq.273.1549709776354; Sat, 09 Feb 2019 02:56:16 -0800 (PST) Received: from avx2 ([46.53.242.39]) by smtp.gmail.com with ESMTPSA id j33sm7814387wre.91.2019.02.09.02.56.14 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 09 Feb 2019 02:56:15 -0800 (PST) Date: Sat, 9 Feb 2019 13:56:13 +0300 From: Alexey Dobriyan To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH] proc: more robust bulk read test Message-ID: <20190209105613.GA10384@avx2> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org /proc may not be mounted and test will exit successfully. Ensure proc is mounted at /proc. Signed-off-by: Alexey Dobriyan --- tools/testing/selftests/proc/read.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) --- a/tools/testing/selftests/proc/read.c +++ b/tools/testing/selftests/proc/read.c @@ -26,8 +26,10 @@ #include #include #include +#include #include #include +#include #include #include @@ -123,10 +125,22 @@ static void f(DIR *d, unsigned int level) int main(void) { DIR *d; + struct statfs sfs; d = opendir("/proc"); if (!d) return 2; + + /* Ensure /proc is proc. */ + if (fstatfs(dirfd(d), &sfs) == -1) { + return 1; + } + if (sfs.f_type != 0x9fa0) { + fprintf(stderr, "error: unexpected f_type %lx\n", (long)sfs.f_type); + return 2; + } + f(d, 0); + return 0; }