[PATCH v3 rcu 2/8] torture: Use mktemp instead of guessing at unique names
From: Paul E. McKenney
Date: Wed Oct 19 2022 - 19:03:19 EST
This commit drags the rcutorture scripting kicking and screaming into the
twenty-first century by making use of the BSD-derived mktemp command to
create temporary files and directories. In happy contrast to many of its
ill-behaved predecessors, mktemp seems to actually work reasonably reliably!
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
.../testing/selftests/rcutorture/bin/config2csv.sh | 3 +--
.../selftests/rcutorture/bin/config_override.sh | 3 +--
.../testing/selftests/rcutorture/bin/configcheck.sh | 3 +--
.../testing/selftests/rcutorture/bin/configinit.sh | 3 +--
tools/testing/selftests/rcutorture/bin/kvm-again.sh | 3 +--
.../selftests/rcutorture/bin/kvm-assign-cpus.sh | 3 +--
tools/testing/selftests/rcutorture/bin/kvm-build.sh | 3 +--
.../selftests/rcutorture/bin/kvm-end-run-stats.sh | 3 +--
.../testing/selftests/rcutorture/bin/kvm-remote.sh | 13 ++++++-------
.../rcutorture/bin/kvm-test-1-run-batch.sh | 3 +--
.../selftests/rcutorture/bin/kvm-test-1-run-qemu.sh | 3 +--
.../selftests/rcutorture/bin/kvm-test-1-run.sh | 3 +--
tools/testing/selftests/rcutorture/bin/kvm.sh | 3 +--
.../testing/selftests/rcutorture/bin/parse-build.sh | 3 +--
tools/testing/selftests/rcutorture/bin/torture.sh | 3 +--
15 files changed, 20 insertions(+), 35 deletions(-)
diff --git a/tools/testing/selftests/rcutorture/bin/config2csv.sh b/tools/testing/selftests/rcutorture/bin/config2csv.sh
index d5a16631b16ee..0cf55f1bf6548 100755
--- a/tools/testing/selftests/rcutorture/bin/config2csv.sh
+++ b/tools/testing/selftests/rcutorture/bin/config2csv.sh
@@ -30,9 +30,8 @@ else
fi
scenarios="`echo $scenariosarg | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"
-T=/tmp/config2latex.sh.$$
+T=`mktemp -d /tmp/config2latex.sh.XXXXXX`
trap 'rm -rf $T' 0
-mkdir $T
cat << '---EOF---' >> $T/p.awk
END {
diff --git a/tools/testing/selftests/rcutorture/bin/config_override.sh b/tools/testing/selftests/rcutorture/bin/config_override.sh
index 90016c359e839..b3d2e7efa40cd 100755
--- a/tools/testing/selftests/rcutorture/bin/config_override.sh
+++ b/tools/testing/selftests/rcutorture/bin/config_override.sh
@@ -29,9 +29,8 @@ else
exit 1
fi
-T=${TMPDIR-/tmp}/config_override.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/config_override.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
sed < $override -e 's/^/grep -v "/' -e 's/=.*$/="/' |
awk '
diff --git a/tools/testing/selftests/rcutorture/bin/configcheck.sh b/tools/testing/selftests/rcutorture/bin/configcheck.sh
index 31584cee84d71..83fac1852ab23 100755
--- a/tools/testing/selftests/rcutorture/bin/configcheck.sh
+++ b/tools/testing/selftests/rcutorture/bin/configcheck.sh
@@ -7,9 +7,8 @@
#
# Authors: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
-T=${TMPDIR-/tmp}/abat-chk-config.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/configcheck.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
cat $1 > $T/.config
diff --git a/tools/testing/selftests/rcutorture/bin/configinit.sh b/tools/testing/selftests/rcutorture/bin/configinit.sh
index d6e5ce084b1cf..28bdb3ac7ba6f 100755
--- a/tools/testing/selftests/rcutorture/bin/configinit.sh
+++ b/tools/testing/selftests/rcutorture/bin/configinit.sh
@@ -15,9 +15,8 @@
#
# Authors: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
-T=${TMPDIR-/tmp}/configinit.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/configinit.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
# Capture config spec file.
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-again.sh b/tools/testing/selftests/rcutorture/bin/kvm-again.sh
index 85cfd139f9737..20941c1051087 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-again.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-again.sh
@@ -12,9 +12,8 @@
scriptname=$0
args="$*"
-T=${TMPDIR-/tmp}/kvm-again.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-again.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
if ! test -d tools/testing/selftests/rcutorture/bin
then
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-assign-cpus.sh b/tools/testing/selftests/rcutorture/bin/kvm-assign-cpus.sh
index f99b2c146f835..46b08cd16ba5c 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-assign-cpus.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-assign-cpus.sh
@@ -7,9 +7,8 @@
#
# Usage: kvm-assign-cpus.sh /path/to/sysfs
-T=/tmp/kvm-assign-cpus.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-assign-cpus.sh.XXXXXX`"
trap 'rm -rf $T' 0 2
-mkdir $T
sysfsdir=${1-/sys/devices/system/node}
if ! cd "$sysfsdir" > $T/msg 2>&1
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-build.sh b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
index 5ad973dca8207..e28a82851f7c4 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-build.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
@@ -23,9 +23,8 @@ then
fi
resdir=${2}
-T=${TMPDIR-/tmp}/test-linux.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-build.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
cp ${config_template} $T/config
cat << ___EOF___ >> $T/config
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-end-run-stats.sh b/tools/testing/selftests/rcutorture/bin/kvm-end-run-stats.sh
index ee886b40a5d2c..2b56baceb05d7 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-end-run-stats.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-end-run-stats.sh
@@ -18,9 +18,8 @@ then
exit 1
fi
-T=${TMPDIR-/tmp}/kvm-end-run-stats.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-end-run-stats.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
PATH=${RCUTORTURE}/bin:$PATH; export PATH
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-remote.sh b/tools/testing/selftests/rcutorture/bin/kvm-remote.sh
index 9f0a5d5ff2ddc..a2328163eba1d 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-remote.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-remote.sh
@@ -34,19 +34,18 @@ fi
shift
# Pathnames:
-# T: /tmp/kvm-remote.sh.$$
-# resdir: /tmp/kvm-remote.sh.$$/res
-# rundir: /tmp/kvm-remote.sh.$$/res/$ds ("-remote" suffix)
+# T: /tmp/kvm-remote.sh.NNNNNN where "NNNNNN" is set by mktemp
+# resdir: /tmp/kvm-remote.sh.NNNNNN/res
+# rundir: /tmp/kvm-remote.sh.NNNNNN/res/$ds ("-remote" suffix)
# oldrun: `pwd`/tools/testing/.../res/$otherds
#
# Pathname segments:
-# TD: kvm-remote.sh.$$
+# TD: kvm-remote.sh.NNNNNN
# ds: yyyy.mm.dd-hh.mm.ss-remote
-TD=kvm-remote.sh.$$
-T=${TMPDIR-/tmp}/$TD
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-remote.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
+TD="`basename "$T"`"
resdir="$T/res"
ds=`date +%Y.%m.%d-%H.%M.%S`-remote
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh
index 1e29d656501bc..c3808c490d92d 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh
@@ -13,9 +13,8 @@
#
# Authors: Paul E. McKenney <paulmck@xxxxxxxxxx>
-T=${TMPDIR-/tmp}/kvm-test-1-run-batch.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run-batch.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
echo ---- Running batch $*
# Check arguments
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-qemu.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-qemu.sh
index 44280582c594e..9da86e6cd1812 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-qemu.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-qemu.sh
@@ -17,9 +17,8 @@
#
# Authors: Paul E. McKenney <paulmck@xxxxxxxxxx>
-T=${TMPDIR-/tmp}/kvm-test-1-run-qemu.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run-qemu.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
resdir="$1"
if ! test -d "$resdir"
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index f4c8055dbf7ad..d2a3710a5f2ad 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -25,9 +25,8 @@
#
# Authors: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
-T=${TMPDIR-/tmp}/kvm-test-1-run.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
. functions.sh
. $CONFIGFRAG/ver_functions.sh
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 6c734818a8757..7710b1e1cddab 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -14,9 +14,8 @@
scriptname=$0
args="$*"
-T=${TMPDIR-/tmp}/kvm.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
cd `dirname $scriptname`/../../../../../
diff --git a/tools/testing/selftests/rcutorture/bin/parse-build.sh b/tools/testing/selftests/rcutorture/bin/parse-build.sh
index 2dbfca3589b17..5a0b7ffcf047a 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-build.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-build.sh
@@ -15,9 +15,8 @@
F=$1
title=$2
-T=${TMPDIR-/tmp}/parse-build.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/parse-build.sh.XXXXXX`"
trap 'rm -rf $T' 0
-mkdir $T
. functions.sh
diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh
index d477618e7261d..4d285db2fbbdd 100755
--- a/tools/testing/selftests/rcutorture/bin/torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@ -206,9 +206,8 @@ ds="`date +%Y.%m.%d-%H.%M.%S`-torture"
startdate="`date`"
starttime="`get_starttime`"
-T=/tmp/torture.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/torture.sh.XXXXXX`"
trap 'rm -rf $T' 0 2
-mkdir $T
echo " --- " $scriptname $args | tee -a $T/log
echo " --- Results directory: " $ds | tee -a $T/log
--
2.31.1.189.g2e36527f23