From patchwork Wed Mar 15 23:54:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boqun Feng X-Patchwork-Id: 13176793 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 10A84C7618B for ; Wed, 15 Mar 2023 23:55:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233212AbjCOXzb (ORCPT ); Wed, 15 Mar 2023 19:55:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34182 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233191AbjCOXzY (ORCPT ); Wed, 15 Mar 2023 19:55:24 -0400 Received: from mail-qt1-x836.google.com (mail-qt1-x836.google.com [IPv6:2607:f8b0:4864:20::836]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9FD5561536; Wed, 15 Mar 2023 16:55:15 -0700 (PDT) Received: by mail-qt1-x836.google.com with SMTP id r16so53879qtx.9; Wed, 15 Mar 2023 16:55:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1678924514; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:feedback-id:from:to:cc:subject :date:message-id:reply-to; bh=JaJV0W3JpTKcuvbp4OnNcGpM+ZfLpz31BXaPlTpOHes=; b=LwTIMY/691Ca2SxnUr999kk1iyHrVvNB2X4RoKGJ0l5dMghNHWFOMYCN9I0hcp5fSz j7cFVsxJlONl5cR85L/bt2ajTlEuijKwFuBwkgwBg9cJVtJQ74IFYExNo+LCGE/V6UGB okT4wuntfBEduzFjTNNkBdXOOERuJCCabbfiWasdP36r2JC+9wVlq7DvPY7O5bbK66yh dyzwRlLElJgGoYJQzEBdEVMp1NqQTh4yFINJR+aiFcXvrYHEVhwU8V/OP1TloYjwKXE1 ICuWdd9UCmf/6sFEAcb4kprJjMA7jm1UUAMcvSyZwKgDHDhqQ7zZR7l357gcjiME6gW9 7gBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678924514; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:feedback-id:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=JaJV0W3JpTKcuvbp4OnNcGpM+ZfLpz31BXaPlTpOHes=; b=qEWYT6BhNc7qb8ZSvPzOSmjlYut+lZoYVshGRqDfwWKzNiwy1fta4rkFb98pMOUtQq 5wEFtV9yAmZVE66sTf8c1qOtDdqhelycix/15eSLZxegkP1Y6JgbgUSGOGDd+kmS3V+j 0IK1D5/sCdn6aEgwFG/G7dXFLXF8KhZG04xHmIcmrMbDqOm3CtrG9Vxc2We786hQE6ND rS9YesZxAX34UcsXbZ38/RKhxm8WEzPz84+w8R2pT2XWCd+05BZJqlvZfnsbMDcE+Y+w y8wRgKFtmi5gGuEPnTkICyQMLHbkK55OCt/NVHSdHmfght2vgl5mlSJ+/0gotVcgCOui hYWA== X-Gm-Message-State: AO0yUKWNWJ6xd6yTM2fUNZbZhlOmdE4Bcl1HCj6O+0OqSHapziEnM+uT +k6Bt16AtLeeKwelFlRWHbI= X-Google-Smtp-Source: AK7set+bq9Fru+65rGY7BwCoLvKsiUQemXgyLiN3CLIR66H4yS3gnKeQyyf+auXz7XVyub9nNEyFOA== X-Received: by 2002:a05:622a:89:b0:3bf:cfa6:55a1 with SMTP id o9-20020a05622a008900b003bfcfa655a1mr3493806qtw.12.1678924514546; Wed, 15 Mar 2023 16:55:14 -0700 (PDT) Received: from auth2-smtp.messagingengine.com (auth2-smtp.messagingengine.com. [66.111.4.228]) by smtp.gmail.com with ESMTPSA id f8-20020ac81348000000b0039cc0fbdb61sm4639549qtj.53.2023.03.15.16.55.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Mar 2023 16:55:14 -0700 (PDT) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailauth.nyi.internal (Postfix) with ESMTP id AE50027C0054; Wed, 15 Mar 2023 19:55:13 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Wed, 15 Mar 2023 19:55:13 -0400 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrvddvledgudehucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomhepuehoqhhu nhcuhfgvnhhguceosghoqhhunhdrfhgvnhhgsehgmhgrihhlrdgtohhmqeenucggtffrrg htthgvrhhnpeegleejiedthedvheeggfejveefjeejkefgveffieeujefhueeigfegueeh geeggfenucevlhhushhtvghrufhiiigvpedunecurfgrrhgrmhepmhgrihhlfhhrohhmpe gsohhquhhnodhmvghsmhhtphgruhhthhhpvghrshhonhgrlhhithihqdeiledvgeehtdei gedqudejjeekheehhedvqdgsohhquhhnrdhfvghngheppehgmhgrihhlrdgtohhmsehfih igmhgvrdhnrghmvg X-ME-Proxy: Feedback-ID: iad51458e:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 15 Mar 2023 19:55:13 -0400 (EDT) From: Boqun Feng To: rcu@vger.kernel.org Cc: Davidlohr Bueso , "Paul E. McKenney" , Josh Triplett , Frederic Weisbecker , Neeraj Upadhyay , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Joel Fernandes , Shuah Khan , Bhaskar Chowdhury , Boqun Feng , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH rcu 4/8] tools: rcu: Add usage function and check for argument Date: Wed, 15 Mar 2023 16:54:50 -0700 Message-Id: <20230315235454.2993-5-boqun.feng@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230315235454.2993-1-boqun.feng@gmail.com> References: <20230315235454.2993-1-boqun.feng@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org From: Bhaskar Chowdhury This commit converts extract-stall.sh script's header comment to a usage() function, and adds an argument check. While in the area, make this script be executable. [ paulmck: Strength argument check, remove extraneous comment. ] Signed-off-by: Bhaskar Chowdhury Signed-off-by: Paul E. McKenney Signed-off-by: Boqun Feng --- tools/rcu/extract-stall.sh | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) mode change 100644 => 100755 tools/rcu/extract-stall.sh diff --git a/tools/rcu/extract-stall.sh b/tools/rcu/extract-stall.sh old mode 100644 new mode 100755 index e565697c9f90..08a39ad44320 --- a/tools/rcu/extract-stall.sh +++ b/tools/rcu/extract-stall.sh @@ -1,11 +1,25 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0+ -# -# Extract any RCU CPU stall warnings present in specified file. -# Filter out clocksource lines. Note that preceding-lines excludes the -# initial line of the stall warning but trailing-lines includes it. -# -# Usage: extract-stall.sh dmesg-file [ preceding-lines [ trailing-lines ] ] + +usage() { + echo Extract any RCU CPU stall warnings present in specified file. + echo Filter out clocksource lines. Note that preceding-lines excludes the + echo initial line of the stall warning but trailing-lines includes it. + echo + echo Usage: $(basename $0) dmesg-file [ preceding-lines [ trailing-lines ] ] + echo + echo Error: $1 +} + +# Terminate the script, if the argument is missing + +if test -f "$1" && test -r "$1" +then + : +else + usage "Console log file \"$1\" missing or unreadable." + exit 1 +fi echo $1 preceding_lines="${2-3}"