Commit f0a6eceb authored by Masami Hiramatsu (Google)'s avatar Masami Hiramatsu (Google) Committed by Shuah Khan
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selftests/ftrace: Fix eventfs ownership testcase to find mount point 



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: ee9793be ("tracing/selftests: Add ownership modification tests for eventfs")
Signed-off-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent b4bcdff7

tools/testing/selftests/ftrace/test.d/00basic/test_ownership.tc

+12 −0
Original line number Diff line number Diff line
@@ -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