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diff --git a/tools/memory-model/scripts/checkghlitmus.sh b/tools/memory-model/scripts/checkghlitmus.sh
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+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Runs the C-language litmus tests having a maximum number of processes
+# to run, defaults to 6.
+#
+# sh checkghlitmus.sh
+#
+# Run from the Linux kernel tools/memory-model directory. See the
+# parseargs.sh scripts for arguments.
+
+. scripts/parseargs.sh
+
+T=/tmp/checkghlitmus.sh.$$
+trap 'rm -rf $T' 0
+mkdir $T
+
+# Clone the repository if it is not already present.
+if test -d litmus
+then
+ :
+else
+ git clone https://github.com/paulmckrcu/litmus
+ ( cd litmus; git checkout origin/master )
+fi
+
+# Create any new directories that have appeared in the github litmus
+# repo since the last run.
+if test "$LKMM_DESTDIR" != "."
+then
+ find litmus -type d -print |
+ ( cd "$LKMM_DESTDIR"; sed -e 's/^/mkdir -p /' | sh )
+fi
+
+# Create a list of the C-language litmus tests previously run.
+( cd $LKMM_DESTDIR; find litmus -name '*.litmus.out' -print ) |
+ sed -e 's/\.out$//' |
+ xargs -r egrep -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' |
+ xargs -r grep -L "^P${LKMM_PROCS}"> $T/list-C-already
+
+# Create a list of C-language litmus tests with "Result:" commands and
+# no more than the specified number of processes.
+find litmus -name '*.litmus' -exec grep -l -m 1 "^C " {} \; > $T/list-C
+xargs < $T/list-C -r egrep -l '^ \* Result: (Never|Sometimes|Always|DEADLOCK)' > $T/list-C-result
+xargs < $T/list-C-result -r grep -L "^P${LKMM_PROCS}" > $T/list-C-result-short
+
+# Form list of tests without corresponding .litmus.out files
+sort $T/list-C-already $T/list-C-result-short | uniq -u > $T/list-C-needed
+
+# Run any needed tests.
+if scripts/runlitmushist.sh < $T/list-C-needed > $T/run.stdout 2> $T/run.stderr
+then
+ errs=
+else
+ errs=1
+fi
+
+sed < $T/list-C-result-short -e 's,^,scripts/judgelitmus.sh ,' |
+ sh > $T/judge.stdout 2> $T/judge.stderr
+
+if test -n "$errs"
+then
+ cat $T/run.stderr 1>&2
+fi
+grep '!!!' $T/judge.stdout