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Message-ID: <20210507202910.GZ975577@paulmck-ThinkPad-P17-Gen-1>
Date: Fri, 7 May 2021 13:29:10 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: Frederic Weisbecker <frederic@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] torture: Add --configonly parameter for kvm.sh
On Thu, May 06, 2021 at 03:15:09PM +0200, Frederic Weisbecker wrote:
> Those who just want the resulting config file to generate for bare metal
> don't need to wait for the build. Provide an option to only produce
> the .config file.
>
> Signed-off-by: Frederic Weisbecker <frederic@...nel.org>
This one looks good to me, though it depends on 1/3.
I considered asking for a check of both --configonly and --buildonly,
but on second thought I just couldn't see the point. After all, it
does say why it stopped, either "Config-only run" or "Build-only run"
and that should suffice.
Thanx, Paul
> ---
> .../selftests/rcutorture/bin/kvm-build.sh | 5 ++++
> .../selftests/rcutorture/bin/kvm-recheck.sh | 6 ++++-
> .../rcutorture/bin/kvm-test-1-run.sh | 12 ++++++++-
> tools/testing/selftests/rcutorture/bin/kvm.sh | 26 +++++++++++++------
> 4 files changed, 39 insertions(+), 10 deletions(-)
>
> diff --git a/tools/testing/selftests/rcutorture/bin/kvm-build.sh b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
> index 9eb4324d42e1..463db5590220 100755
> --- a/tools/testing/selftests/rcutorture/bin/kvm-build.sh
> +++ b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
> @@ -43,6 +43,11 @@ then
> exit 2
> fi
>
> +if test -n "$TORTURE_CONFIGONLY"
> +then
> + exit 0
> +fi
> +
> # Tell "make" to use double the number of real CPUs on the build system.
> ncpus="`getconf _NPROCESSORS_ONLN`"
> make -j$((2 * ncpus)) $TORTURE_KMAKE_ARG > $resdir/Make.out 2>&1
> diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
> index e01b31b87044..68b521b5961e 100755
> --- a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
> +++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
> @@ -57,7 +57,11 @@ do
> cat $i/Warnings
> fi
> else
> - if test -f "$i/buildonly"
> + if test -f "$i/configonly"
> + then
> + echo Config-only run, no build/boot/test
> + configcheck.sh $i/.config $i/ConfigFragment
> + elif test -f "$i/buildonly"
> then
> echo Build-only run, no boot/test
> configcheck.sh $i/.config $i/ConfigFragment
> diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
> index e6aece69d81b..6df9efc77469 100755
> --- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
> +++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
> @@ -113,11 +113,21 @@ then
> exit 1
> elif kvm-build.sh $T/KcList $resdir "$kboot_args" "$modprobe_args"
> then
> + cp .config $resdir
> + if test -n "$TORTURE_CONFIGONLY"
> + then
> + if test -f $resdir/build.wait
> + then
> + rm $resdir/build.wait
> + fi
> + echo Config-only run specified, build/boot/test omitted.
> + touch $resdir/configonly
> + exit 0
> + fi
> # Had to build a kernel for this test.
> QEMU="`identify_qemu vmlinux`"
> BOOT_IMAGE="`identify_boot_image $QEMU`"
> cp vmlinux $resdir
> - cp .config $resdir
> cp Module.symvers $resdir > /dev/null || :
> cp System.map $resdir > /dev/null || :
> if test -n "$BOOT_IMAGE"
> diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
> index a05a20135de1..283f5d896234 100755
> --- a/tools/testing/selftests/rcutorture/bin/kvm.sh
> +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
> @@ -34,6 +34,7 @@ TORTURE_DEFCONFIG=defconfig
> TORTURE_BOOT_IMAGE=""
> TORTURE_BUILDONLY=
> TORTURE_CMDLINE2CONFIG=
> +TORTURE_CONFIGONLY=
> TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
> TORTURE_KCONFIG_ARG=""
> TORTURE_KCONFIG_GDB_ARG=""
> @@ -66,6 +67,7 @@ usage () {
> echo " --bootimage relative-path-to-kernel-boot-image"
> echo " --buildonly"
> echo " --cmdline-to-config"
> + echo " --configonly"
> echo " --configs \"config-file list w/ repeat factor (3*TINY01)\""
> echo " --cpus N"
> echo " --datestamp string"
> @@ -113,6 +115,9 @@ do
> --cmdline-to-config)
> TORTURE_CMDLINE2CONFIG=1
> ;;
> + --configonly|--config-only)
> + TORTURE_CONFIGONLY=1
> + ;;
> --configs|--config)
> checkarg --configs "(list of config files)" "$#" "$2" '^[^/.a-z]\+$' '^--'
> configs="$configs $2"
> @@ -394,6 +399,7 @@ TORTURE_ALLOTED_CPUS="$TORTURE_ALLOTED_CPUS"; export TORTURE_ALLOTED_CPUS
> TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
> TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
> TORTURE_CMDLINE2CONFIG="$TORTURE_CMDLINE2CONFIG"; export TORTURE_CMDLINE2CONFIG
> +TORTURE_CONFIGONLY="$TORTURE_CONFIGONLY"; export TORTURE_CONFIGONLY
> TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
> TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
> TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
> @@ -438,6 +444,7 @@ fi
> ___EOF___
> awk < $T/cfgcpu.pack \
> -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
> + -v TORTURE_CONFIGONLY="$TORTURE_CONFIGONLY" \
> -v CONFIGDIR="$CONFIGFRAG/" \
> -v KVM="$KVM" \
> -v ncpus=$cpus \
> @@ -490,12 +497,14 @@ function dump(first, pastlast, batchnum)
> print "mkdir " rd cfr[jn] " || :";
> print "touch " builddir ".wait";
> print "kvm-test-1-run.sh " CONFIGDIR cf[j], rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn] "/kvm-test-1-run.sh.out 2>&1 &"
> - print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
> - print "while test -f " builddir ".wait"
> - print "do"
> - print "\tsleep 1"
> - print "done"
> - print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
> + if (!TORTURE_CONFIGONLY) {
> + print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
> + print "while test -f " builddir ".wait"
> + print "do"
> + print "\tsleep 1"
> + print "done"
> + print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
> + }
> jn++;
> }
> print "runfiles="
> @@ -503,7 +512,7 @@ function dump(first, pastlast, batchnum)
> builddir=rd cfr[j] "/build";
> if (TORTURE_BUILDONLY)
> print "rm -f " builddir ".ready"
> - else
> + else if (!TORTURE_CONFIGONLY)
> print "mv " builddir ".ready " builddir ".run"
> print "runfiles=\"$runfiles " builddir ".run\""
> fi
> @@ -517,7 +526,8 @@ function dump(first, pastlast, batchnum)
> njitter = 0;
> print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
> }
> - if (TORTURE_BUILDONLY) {
> +
> + if (TORTURE_BUILDONLY || TORTURE_CONFIGONLY) {
> print "needqemurun="
> }
> print "if test -n \"$needqemurun\""
> --
> 2.25.1
>
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