From: Andrea Arcangeli <aarcange@redhat.com>
To: Pavel Emelyanov <xemul@parallels.com>
Cc: Linux MM <linux-mm@kvack.org>
Subject: Re: [PATCH] UserfaultFD: Rename uffd_api.bits into .features
Date: Thu, 7 May 2015 16:33:43 +0200 [thread overview]
Message-ID: <20150507143343.GG13098@redhat.com> (raw)
In-Reply-To: <554B769E.1040000@parallels.com>
On Thu, May 07, 2015 at 05:28:46PM +0300, Pavel Emelyanov wrote:
> Yup, this is very close to what I did in my set -- introduced a message to
> report back to the user-space on read. But my message is more than 8+2*1 bytes,
> so we'll have one message for 0xAA API and another one for 0xAB (new) one :)
I slightly altered it to fix an issue with packet alignments so it'd
be 16bytes.
How big is your msg currently? Could we get to use the same API?
UFFDIO_REGISTER_MODE_FORK
or
UFFDIO_REGISTER_MODE_NON_COOPERATIVE would differentiate if you want
to register for fork/mremap/dontneed events as well or only the
default (UFFD_EVENT_PAGEFAULT).
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next prev parent reply other threads:[~2015-05-07 14:33 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-18 19:34 [PATCH 0/3] UserfaultFD: Extension for non cooperative uffd usage Pavel Emelyanov
2015-03-18 19:34 ` Pavel Emelyanov
2015-03-18 19:34 ` Pavel Emelyanov
[not found] ` <5509D342.7000403-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2015-03-18 19:34 ` [PATCH 1/3] uffd: Tossing bits around Pavel Emelyanov
2015-03-18 19:34 ` Pavel Emelyanov
2015-03-18 19:34 ` Pavel Emelyanov
2015-03-18 19:35 ` [PATCH 2/3] uffd: Introduce the v2 API Pavel Emelyanov
2015-03-18 19:35 ` Pavel Emelyanov
2015-03-18 19:35 ` Pavel Emelyanov
[not found] ` <5509D375.7000809-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2015-04-21 12:18 ` Andrea Arcangeli
2015-04-21 12:18 ` Andrea Arcangeli
2015-04-21 12:18 ` Andrea Arcangeli
2015-04-23 6:29 ` Pavel Emelyanov
2015-04-23 6:29 ` Pavel Emelyanov
[not found] ` <55389133.8070701-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2015-04-27 21:12 ` Andrea Arcangeli
2015-04-27 21:12 ` Andrea Arcangeli
2015-04-27 21:12 ` Andrea Arcangeli
2015-04-30 9:50 ` Pavel Emelyanov
2015-04-30 9:50 ` Pavel Emelyanov
2015-03-18 19:35 ` [PATCH 3/3] uffd: Introduce fork() notification Pavel Emelyanov
2015-03-18 19:35 ` Pavel Emelyanov
2015-03-18 19:35 ` Pavel Emelyanov
2015-04-21 12:02 ` [PATCH 0/3] UserfaultFD: Extension for non cooperative uffd usage Andrea Arcangeli
2015-04-21 12:02 ` Andrea Arcangeli
2015-04-21 12:02 ` Andrea Arcangeli
[not found] ` <20150421120222.GC4481-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-04-23 6:34 ` Pavel Emelyanov
2015-04-23 6:34 ` Pavel Emelyanov
2015-04-23 6:34 ` Pavel Emelyanov
[not found] ` <20150427211650.GC24035@redhat.com>
2015-04-30 16:38 ` [PATCH] UserfaultFD: Rename uffd_api.bits into .features Pavel Emelyanov
2015-05-07 13:42 ` Andrea Arcangeli
2015-05-07 14:28 ` Pavel Emelyanov
2015-05-07 14:33 ` Andrea Arcangeli [this message]
2015-05-07 14:42 ` Pavel Emelyanov
2015-05-07 15:11 ` Andrea Arcangeli
2015-05-07 15:20 ` Pavel Emelyanov
2015-05-07 17:08 ` Andrea Arcangeli
2015-05-07 18:35 ` Pavel Emelyanov
2015-05-08 13:39 ` Pavel Emelyanov
2015-05-08 14:07 ` [PATCH] UserfaultFD: Fix stack corruption when zeroing uffd_msg Pavel Emelyanov
2015-05-08 17:54 ` Andrea Arcangeli
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