6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
[ Upstream commit f0a6ecebd858658df213d114b0530f8f0b96e396 ]
Fix eventfs ownership testcase to find mount point if stat -c "%m" failed.
This can happen on the system based on busybox. In this case, this will
try to use the current working directory, which should be a tracefs top
directory (and eventfs is mounted as a part of tracefs.)
If it does not work, the test is skipped as UNRESOLVED because of
the environmental problem.
Fixes: ee9793be08b1 ("tracing/selftests: Add ownership modification tests for eventfs")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Acked-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
.../ftrace/test.d/00basic/test_ownership.tc | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/test_ownership.tc b/tools/testing/selftests/ftrace/test.d/00basic/test_ownership.tc
index c45094d1e1d2d..803efd7b56c77 100644
--- a/tools/testing/selftests/ftrace/test.d/00basic/test_ownership.tc
+++ b/tools/testing/selftests/ftrace/test.d/00basic/test_ownership.tc
@@ -6,6 +6,18 @@ original_group=`stat -c "%g" .`
original_owner=`stat -c "%u" .`
mount_point=`stat -c '%m' .`
+
+# If stat -c '%m' does not work (e.g. busybox) or failed, try to use the
+# current working directory (which should be a tracefs) as the mount point.
+if [ ! -d "$mount_point" ]; then
+ if mount | grep -qw $PWD ; then
+ mount_point=$PWD
+ else
+ # If PWD doesn't work, that is an environmental problem.
+ exit_unresolved
+ fi
+fi
+
mount_options=`mount | grep "$mount_point" | sed -e 's/.*(\(.*\)).*/\1/'`
# find another owner and group that is not the original
--
2.43.0
