From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B64EF28ED for ; Mon, 12 Dec 2022 13:51:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C9167C433D2; Mon, 12 Dec 2022 13:51:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1670853116; bh=x4JAFBBbta5u9iTeIOXd0Io/x1FuBHA32QWM9sNR7sA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PaAkAabkDyyWlINU07kXoGV6jyFVfLpQwkeNX7bNJMfPajk60EMv/Tl3OgUhGHCA/ rxaHx5UmZPiFAKHVfpWED4XbSjTAIaBKk1cdiltkvYCNhOel5e0m58MtBFmKVHzwkI Vdl91TqRqeaMhTuGmJy4IV1vxMNLf5/abByDsZpY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thomas Gleixner , Connor Shu , "Paul E. McKenney" , Sasha Levin Subject: [PATCH 4.14 13/38] rcutorture: Automatically create initrd directory Date: Mon, 12 Dec 2022 14:19:14 +0100 Message-Id: <20221212130912.782133347@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221212130912.069170932@linuxfoundation.org> References: <20221212130912.069170932@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Connor Shu [ Upstream commit 8f15c682ac5a778feb8e343f9057b89beb40d85b ] The rcutorture scripts currently expect the user to create the tools/testing/selftests/rcutorture/initrd directory. Should the user fail to do this, the kernel build will fail with obscure and confusing error messages. This commit therefore adds explicit checks for the tools/testing/selftests/rcutorture/initrd directory, and if not present, creates one on systems on which dracut is installed. If this directory could not be created, a less obscure error message is emitted and the test is aborted. Suggested-by: Thomas Gleixner Signed-off-by: Connor Shu [ paulmck: Adapt the script to fit into the rcutorture framework and severely abbreviate the initrd/init script. ] Signed-off-by: Paul E. McKenney Signed-off-by: Sasha Levin --- tools/testing/selftests/rcutorture/bin/kvm.sh | 8 +++ .../selftests/rcutorture/bin/mkinitrd.sh | 60 +++++++++++++++++++ 2 files changed, 68 insertions(+) create mode 100755 tools/testing/selftests/rcutorture/bin/mkinitrd.sh diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh index b55895fb10ed..2299347b8e37 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh @@ -182,6 +182,14 @@ do shift done +if test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh +then + : +else + echo No initrd and unable to create one, aborting test >&2 + exit 1 +fi + CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG if test -z "$configs" diff --git a/tools/testing/selftests/rcutorture/bin/mkinitrd.sh b/tools/testing/selftests/rcutorture/bin/mkinitrd.sh new file mode 100755 index 000000000000..ae773760f396 --- /dev/null +++ b/tools/testing/selftests/rcutorture/bin/mkinitrd.sh @@ -0,0 +1,60 @@ +#!/bin/bash +# +# Create an initrd directory if one does not already exist. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, you can access it online at +# http://www.gnu.org/licenses/gpl-2.0.html. +# +# Copyright (C) IBM Corporation, 2013 +# +# Author: Connor Shu + +D=tools/testing/selftests/rcutorture + +# Prerequisite checks +[ -z "$D" ] && echo >&2 "No argument supplied" && exit 1 +if [ ! -d "$D" ]; then + echo >&2 "$D does not exist: Malformed kernel source tree?" + exit 1 +fi +if [ -d "$D/initrd" ]; then + echo "$D/initrd already exists, no need to create it" + exit 0 +fi + +T=${TMPDIR-/tmp}/mkinitrd.sh.$$ +trap 'rm -rf $T' 0 2 +mkdir $T + +cat > $T/init << '__EOF___' +#!/bin/sh +while : +do + sleep 1000000 +done +__EOF___ + +# Try using dracut to create initrd +command -v dracut >/dev/null 2>&1 || { echo >&2 "Dracut not installed"; exit 1; } +echo Creating $D/initrd using dracut. + +# Filesystem creation +dracut --force --no-hostonly --no-hostonly-cmdline --module "base" $T/initramfs.img +cd $D +mkdir initrd +cd initrd +zcat $T/initramfs.img | cpio -id +cp $T/init init +echo Done creating $D/initrd using dracut +exit 0 -- 2.35.1