Hi, ... > +++ b/lib/tst_supported_fs_types.c > @@ -52,10 +52,29 @@ static int has_kernel_support(const char *fs_type, int flags) > char buf[128]; > int ret; > + const char * const argv[] = { "grep", "-q", "-F", "-w", fs_type, "/proc/filesystems", NULL }; "-F" is probably useless. Kind regards, Petr