From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 12:05:51 +0200
Subject: Adding upstream version 5.10.209.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../selftests/ftrace/test.d/instances/instance.tc  | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 tools/testing/selftests/ftrace/test.d/instances/instance.tc

(limited to 'tools/testing/selftests/ftrace/test.d/instances/instance.tc')

diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance.tc b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
new file mode 100644
index 000000000..607521d25
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test creation and deletion of trace instances
+# requires: instances
+
+fail() { # mesg
+    rmdir x y z 2>/dev/null
+    echo $1
+    set -e
+    exit_fail
+}
+
+cd instances
+
+# we don't want to fail on error
+set +e
+
+mkdir x
+rmdir x
+result=$?
+
+if [ $result -ne 0 ]; then
+    echo "instance rmdir not supported"
+    exit_unsupported
+fi
+
+instance_slam() {
+    while :; do
+	mkdir x
+	mkdir y
+	mkdir z
+	rmdir x
+	rmdir y
+	rmdir z
+    done 2>/dev/null
+}
+
+instance_slam &
+p1=$!
+echo $p1
+
+instance_slam &
+p2=$!
+echo $p2
+
+instance_slam &
+p3=$!
+echo $p3
+
+instance_slam &
+p4=$!
+echo $p4
+
+instance_slam &
+p5=$!
+echo $p5
+
+ls -lR >/dev/null
+sleep 1
+
+kill -1 $p1
+kill -1 $p2
+kill -1 $p3
+kill -1 $p4
+kill -1 $p5
+
+echo "Wait for processes to finish"
+wait $p1 $p2 $p3 $p4 $p5
+echo "all processes finished, wait for cleanup"
+
+mkdir x y z
+ls x y z
+rmdir x y z
+for d in x y z; do
+        if [ -d $d ]; then
+                fail "instance $d still exists"
+        fi
+done
+
+set -e
+
+exit 0
-- 
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