From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Fix mount_options.tc to use remount option to mount the tracefs.
Since the current implementation does not umount the tracefs,
this test always fails because of -EBUSY error.
Using remount option will allow us to change the mount option.
Fixes: 8b55572e5180 ("tracing/selftests: Add tracefs mount options test")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
.../ftrace/test.d/00basic/mount_options.tc | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc b/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc
index 35e8d47d6072..8a7ce647a60d 100644
--- a/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc
+++ b/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc
@@ -15,11 +15,11 @@ find_alternate_gid() {
tac /etc/group | grep -v ":$original_gid:" | head -1 | cut -d: -f3
}
-mount_tracefs_with_options() {
+remount_tracefs_with_options() {
local mount_point="$1"
local options="$2"
- mount -t tracefs -o "$options" nodev "$mount_point"
+ mount -t tracefs -o "remount,$options" nodev "$mount_point"
setup
}
@@ -81,7 +81,7 @@ test_gid_mount_option() {
# Unmount existing tracefs instance and mount with new GID
unmount_tracefs "$mount_point"
- mount_tracefs_with_options "$mount_point" "$new_options"
+ remount_tracefs_with_options "$mount_point" "$new_options"
check_gid "$mount_point" "$other_group"
@@ -92,7 +92,7 @@ test_gid_mount_option() {
# Unmount and remount with the original GID
unmount_tracefs "$mount_point"
- mount_tracefs_with_options "$mount_point" "$mount_options"
+ remount_tracefs_with_options "$mount_point" "$mount_options"
check_gid "$mount_point" "$original_group"
}
