Re: [PATCH v5 0/5] mm: introduce memfd_secret system call to create "secret" memory areas

From: Mike Rapoport
Date: Thu Sep 17 2020 - 02:10:46 EST


On Thu, Sep 17, 2020 at 07:46:12AM +0200, Michael Kerrisk (man-pages) wrote:
> On Thu, 17 Sep 2020 at 01:20, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > On Wed, 16 Sep 2020 10:35:34 +0300 Mike Rapoport <rppt@xxxxxxxxxx> wrote:
> >
> > > This is an implementation of "secret" mappings backed by a file descriptor.
> > > I've dropped the boot time reservation patch for now as it is not strictly
> > > required for the basic usage and can be easily added later either with or
> > > without CMA.
> >
> > It seems early days for this, especially as regards reviewer buyin.
> > But I'll toss it in there to get it some additional testing.
> >
> > A test suite in tools/testging/selftests/ would be helpful, especially
> > for arch maintainers.
> >
> > I assume that user-facing manpage alterations are planned?

> I was just about to write a mail into this thread when I saw this :-).
>
> So far, I don't think I saw a manual page patch. Mike, how about it?

It is planned :)

I have a draft, but I'm waiting for consensus about the uncached
mappings before sending it out.

--
Sincerely yours,
Mike.