From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pavel Emelyanov <xemul@parallels.com>
Subject: Re: [PATCH 00/21] RFC: userfaultfd v3
Date: Thu, 5 Mar 2015 21:15:36 +0300
Message-ID: <54F89D48.3020707@parallels.com>
References: <1425575884-2574-1-git-send-email-aarcange@redhat.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7bit
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>, Sanidhya Kashyap
	<sanidhya.gatech@gmail.com>, <zhang.zhanghailiang@huawei.com>, Linus Torvalds
	<torvalds@linux-foundation.org>, Andres Lagar-Cavilla <andreslc@google.com>,
	Dave Hansen <dave@sr71.net>, Paolo Bonzini <pbonzini@redhat.com>, Rik van
 Riel <riel@redhat.com>, Mel Gorman <mgorman@suse.de>, Andy Lutomirski
	<luto@amacapital.net>, Andrew Morton <akpm@linux-foundation.org>, Sasha Levin
	<sasha.levin@oracle.com>, Hugh Dickins <hughd@google.com>, Peter Feiner
	<pfeiner@google.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	Christopher Covington <cov@codeaurora.org>, Johannes Weiner
	<hannes@cmpxchg.org>, Robert Love <rlove@google.com>, Dmitry Adamushko
	<dmitry.adamushko@gmail.com>, Neil Brown <neilb@suse.de>, Mike Hommey
	<mh@glandium.org>, Taras Glek <tglek@mozilla.com>, Jan Kara <jack@suse.cz>,
	KOSAKI Motohiro <kosaki.mo
To: Andrea Arcangeli <aarcange@redhat.com>, <qemu-devel@nongnu.org>,
	<kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
	<linux-api@vger.kernel.org>, Android Kernel Team <kernel-team@android.com>
Return-path: <owner-linux-mm@kvack.org>
In-Reply-To: <1425575884-2574-1-git-send-email-aarcange@redhat.com>
Sender: owner-linux-mm@kvack.org
List-Id: kvm.vger.kernel.org


> All UFFDIO_COPY/ZEROPAGE/REMAP methods already support CRIU postcopy
> live migration and the UFFD can be passed to a manager process through
> unix domain sockets to satisfy point 5).

Yup :) That's the best (from my POV) point of ufd -- the ability to delegate
the descriptor to some other task. Though there are several limitations (I've
expressed them in other e-mails), I'm definitely supporting this!

The respective CRIU code is quite sloppy yet, I will try to brush one up and
show soon.

Thanks,
Pavel

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>