Re: [PATCH v2 1/2] Add UFFD_USER_MODE_ONLY

From: Sebastian Andrzej Siewior
Date: Mon Aug 24 2020 - 08:33:05 EST


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