linux-kernel - [PATCH 0/5] UserfaultFD: Extension for non cooperative uffd usage (v2)

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Message-ID: <5553651B.1020909@parallels.com>
Date:	Wed, 13 May 2015 17:52:11 +0300
From:	Pavel Emelyanov <xemul@...allels.com>
To:	Andrea Arcangeli <aarcange@...hat.com>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux MM <linux-mm@...ck.org>,
	Sanidhya Kashyap <sanidhya.gatech@...il.com>
Subject: [PATCH 0/5] UserfaultFD: Extension for non cooperative uffd usage
 (v2)

Hi,

This set is to address the issues that appear in userfaultfd usage
scenarios when the task monitoring the uffd and the mm-owner do not 
cooperate to each other on VM changes such as remaps, madvises and 
fork()-s.

This is the re-based set on the recent userfaultfd branch, two major
changes are:

* No need in separate API version, the uffd_msg introduced in the
  current code and UFFD_API ioctl are enough for the needed extentions
* Two events added -- for mremap() and madvise() MADV_DONTNEED

More details about the particular events are in patches 3 trough 4.
Comments and suggestion are warmly welcome :)

The v1 discussion thread is here: https://lkml.org/lkml/2015/3/18/729

Thanks,
Pavel
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