From: Andrea Arcangeli <aarcange@redhat.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
kirill.shutemov@linux.intel.com, linux-kernel@vger.kernel.org,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [BUG] vfio device assignment regression with THP ref counting redesign
Date: Thu, 5 May 2016 16:39:24 +0200 [thread overview]
Message-ID: <20160505143924.GC28755@redhat.com> (raw)
In-Reply-To: <20160504191927.095cdd90@t450s.home>
Hello Alex,
On Wed, May 04, 2016 at 07:19:27PM -0600, Alex Williamson wrote:
> On Mon, 2 May 2016 20:03:07 +0200
> Andrea Arcangeli <aarcange@redhat.com> wrote:
>
> > On Mon, May 02, 2016 at 07:00:42PM +0300, Kirill A. Shutemov wrote:
> > > Agreed. I just didn't see the two-refcounts solution.
> >
> > If you didn't do it already or if you're busy with something else,
> > I can change the patch to the two refcount solution, which should
> > restore the old semantics without breaking rmap.
>
> I didn't see any follow-up beyond this nor patches on lkml. Do we have
> something we feel confident for posting to v4.6 with a stable backport
> to v4.5? Thanks,
I'm currently testing this:
next prev parent reply other threads:[~2016-05-05 14:39 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-28 16:20 [BUG] vfio device assignment regression with THP ref counting redesign Alex Williamson
2016-04-28 18:17 ` Kirill A. Shutemov
2016-04-28 18:58 ` Alex Williamson
2016-04-28 23:21 ` Andrea Arcangeli
2016-04-29 0:44 ` Alex Williamson
2016-04-29 0:51 ` Kirill A. Shutemov
2016-04-29 2:45 ` Alex Williamson
2016-04-29 7:06 ` Kirill A. Shutemov
2016-04-29 15:12 ` Alex Williamson
2016-04-29 16:34 ` Andrea Arcangeli
2016-04-29 22:34 ` Alex Williamson
2016-05-02 10:41 ` Kirill A. Shutemov
2016-05-02 11:15 ` Jerome Glisse
2016-05-02 12:14 ` GUP guarantees wrt to userspace mappings redesign Kirill A. Shutemov
2016-05-02 13:39 ` Jerome Glisse
2016-05-02 15:00 ` GUP guarantees wrt to userspace mappings Kirill A. Shutemov
2016-05-02 15:22 ` Jerome Glisse
2016-05-02 16:12 ` Kirill A. Shutemov
2016-05-02 19:14 ` Andrea Arcangeli
2016-05-02 19:11 ` Andrea Arcangeli
2016-05-02 19:02 ` Andrea Arcangeli
2016-05-02 14:15 ` GUP guarantees wrt to userspace mappings redesign Oleg Nesterov
2016-05-02 16:21 ` Kirill A. Shutemov
2016-05-02 16:22 ` Oleg Nesterov
2016-05-02 18:03 ` Kirill A. Shutemov
2016-05-02 17:41 ` Oleg Nesterov
2016-05-02 18:56 ` Andrea Arcangeli
2016-05-02 15:23 ` [BUG] vfio device assignment regression with THP ref counting redesign Andrea Arcangeli
2016-05-02 16:00 ` Kirill A. Shutemov
2016-05-02 18:03 ` Andrea Arcangeli
2016-05-05 1:19 ` Alex Williamson
2016-05-05 14:39 ` Andrea Arcangeli [this message]
2016-05-05 15:09 ` Andrea Arcangeli
2016-05-05 15:11 ` Kirill A. Shutemov
2016-05-05 15:24 ` Andrea Arcangeli
2016-05-06 7:29 ` Kirill A. Shutemov
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