On 2020-08-21 18:40:17 [-0700], Lokesh Gidra wrote:> --- a/fs/userfaultfd.c> +++ b/fs/userfaultfd.c> @@ -1966,6 +1969,7 @@ static void init_once_userfaultfd_ctx(void *mem)> > SYSCALL_DEFINE1(userfaultfd, int, flags)> {> + static const int uffd_flags = UFFD_USER_MODE_ONLY;> struct userfaultfd_ctx *ctx;> int fd;Why?Sebastian