Re: [PATCH v2 1/1] userfaultfd/sysctl: add vm.unprivileged_userfaultfd

From: Peter Xu
Date: Thu May 28 2020 - 08:49:37 EST


On Thu, May 28, 2020 at 04:50:49PM +0800, Xiaoming Ni wrote:
> Since userfaultfd and vm are more closely related, will there be
> consideration to move fs/userfaultfd.c to the mm directory in the future?

Xiaoming,

I don't think so - userfaultfd is still interfacing the userspace as a file
object, so I think it's proper to have fs/userfaultfd.c handles the fs part of
userfaultfd. There's also an mm/userfaultfd.c which handles some internal
logic of userfaultfd syscalls, please feel free to have a look.

Thanks,

--
Peter Xu