In order to test FAN_FS_ERROR, we want to corrupt the filesystem. The
easiest way to do it is by using debugfs. Add a small helper to issue
debugfs requests. Since most likely this will be the only testcase to
need this, don't bother making it a proper helper for now.
Reviewed-by: Amir Goldstein <amir73il@xxxxxxxxx>
Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxx>
---
changes since v1:
- Add .needs_cmds to require debugfs
---
testcases/kernel/syscalls/fanotify/fanotify21.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/testcases/kernel/syscalls/fanotify/fanotify21.c b/testcases/kernel/syscalls/fanotify/fanotify21.c
index 95c988821a34..43e606c27372 100644
--- a/testcases/kernel/syscalls/fanotify/fanotify21.c
+++ b/testcases/kernel/syscalls/fanotify/fanotify21.c
@@ -49,6 +49,13 @@ static void trigger_fs_abort(void)
MS_REMOUNT|MS_RDONLY, "abort");
}
+static void do_debugfs_request(const char *dev, char *request)
+{
+ const char *cmd[] = {"debugfs", "-w", dev, "-R", request, NULL};
+
+ SAFE_CMD(cmd, NULL, NULL);
+}
+
static struct test_case {
char *name;
int error;
@@ -228,7 +235,11 @@ static struct tst_test test = {
.mntpoint = MOUNT_PATH,
.all_filesystems = 0,
.needs_root = 1,
- .dev_fs_type = "ext4"
+ .dev_fs_type = "ext4",
+ .needs_cmds = (const char *[]) {
+ "debugfs",
+ NULL
+ }
};
#else
--
2.33.0
