All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Arun Sharma <asharma@fb.com>,
	sanjay@google.com, Paul Turner <pjt@google.com>,
	David Rientjes <rientjes@google.com>,
	John Stultz <john.stultz@linaro.org>,
	Christoph Lameter <cl@linux.com>,
	Android Kernel Team <kernel-team@android.com>,
	Robert Love <rlove@google.com>, Mel Gorman <mel@csn.ul.ie>,
	Hugh Dickins <hughd@google.com>,
	Dave Hansen <dave@linux.vnet.ibm.com>,
	Rik van Riel <riel@redhat.com>,
	Dave Chinner <david@fromorbit.com>, Neil Brown <neilb@suse.de>,
	Mike Hommey <mh@glandium.org>, Taras Glek <tglek@mozilla.com>,
	KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Subject: Re: [RFC v4 0/3] Support volatile for anonymous range
Date: Fri, 28 Dec 2012 09:24:53 +0900	[thread overview]
Message-ID: <50DCE6D5.7000901@jp.fujitsu.com> (raw)
In-Reply-To: <20121226034600.GB2453@blaptop>

(2012/12/26 12:46), Minchan Kim wrote:
> Hi Kame,
>
> What are you doing these holiday season? :)
> I can't believe you sit down in front of computer.
>
Honestly, my holiday starts tomorrow ;) (but until 1/5 in the next year.)

>>
>> Hm, by the way, the user need to attach pages to the process by causing page-fault
>> (as you do by memset()) before calling mvolatile() ?
>
> For effectiveness, Yes.
>

Isn't it better to make page-fault by get_user_pages() in mvolatile() ?
Calling page fault in userland seems just to increase burden of apps.

>>
>> I think your approach is interesting, anyway.
>
> Thanks for your interest, Kame.
>
> a??a??a? 3/4 a??a?|a??a??a??a??a??.
>

A happy new year.

Thanks,
-Kame


--
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>

WARNING: multiple messages have this Message-ID (diff)
From: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Michael Kerrisk <mtk.manpages@gmail.com>,
	Arun Sharma <asharma@fb.com>,
	sanjay@google.com, Paul Turner <pjt@google.com>,
	David Rientjes <rientjes@google.com>,
	John Stultz <john.stultz@linaro.org>,
	Christoph Lameter <cl@linux.com>,
	Android Kernel Team <kernel-team@android.com>,
	Robert Love <rlove@google.com>, Mel Gorman <mel@csn.ul.ie>,
	Hugh Dickins <hughd@google.com>,
	Dave Hansen <dave@linux.vnet.ibm.com>,
	Rik van Riel <riel@redhat.com>,
	Dave Chinner <david@fromorbit.com>, Neil Brown <neilb@suse.de>,
	Mike Hommey <mh@glandium.org>, Taras Glek <tglek@mozilla.com>,
	KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Subject: Re: [RFC v4 0/3] Support volatile for anonymous range
Date: Fri, 28 Dec 2012 09:24:53 +0900	[thread overview]
Message-ID: <50DCE6D5.7000901@jp.fujitsu.com> (raw)
In-Reply-To: <20121226034600.GB2453@blaptop>

(2012/12/26 12:46), Minchan Kim wrote:
> Hi Kame,
>
> What are you doing these holiday season? :)
> I can't believe you sit down in front of computer.
>
Honestly, my holiday starts tomorrow ;) (but until 1/5 in the next year.)

>>
>> Hm, by the way, the user need to attach pages to the process by causing page-fault
>> (as you do by memset()) before calling mvolatile() ?
>
> For effectiveness, Yes.
>

Isn't it better to make page-fault by get_user_pages() in mvolatile() ?
Calling page fault in userland seems just to increase burden of apps.

>>
>> I think your approach is interesting, anyway.
>
> Thanks for your interest, Kame.
>
> あけましておめでとう.
>

A happy new year.

Thanks,
-Kame



  reply	other threads:[~2012-12-28  0:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-18  6:47 [RFC v4 0/3] Support volatile for anonymous range Minchan Kim
2012-12-18  6:47 ` Minchan Kim
2012-12-18  6:47 ` [RFC v4 1/3] Introduce new system call mvolatile Minchan Kim
2012-12-18  6:47   ` Minchan Kim
2012-12-18  6:47 ` [RFC v4 2/3] Discard volatile page Minchan Kim
2012-12-18  6:47   ` Minchan Kim
2012-12-18  6:47 ` [RFC v4 3/3] add PGVOLATILE vmstat count Minchan Kim
2012-12-18  6:47   ` Minchan Kim
2012-12-18 18:27 ` [RFC v4 0/3] Support volatile for anonymous range Arun Sharma
2012-12-18 18:27   ` Arun Sharma
2012-12-20  1:34   ` Minchan Kim
2012-12-20  1:34     ` Minchan Kim
2012-12-26  2:37 ` Kamezawa Hiroyuki
2012-12-26  2:37   ` Kamezawa Hiroyuki
2012-12-26  3:46   ` Minchan Kim
2012-12-26  3:46     ` Minchan Kim
2012-12-28  0:24     ` Kamezawa Hiroyuki [this message]
2012-12-28  0:24       ` Kamezawa Hiroyuki
2013-01-04  2:37       ` Minchan Kim
2013-01-04  2:37         ` Minchan Kim

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=50DCE6D5.7000901@jp.fujitsu.com \
    --to=kamezawa.hiroyu@jp.fujitsu.com \
    --cc=akpm@linux-foundation.org \
    --cc=asharma@fb.com \
    --cc=cl@linux.com \
    --cc=dave@linux.vnet.ibm.com \
    --cc=david@fromorbit.com \
    --cc=hughd@google.com \
    --cc=john.stultz@linaro.org \
    --cc=kernel-team@android.com \
    --cc=kosaki.motohiro@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mel@csn.ul.ie \
    --cc=mh@glandium.org \
    --cc=minchan@kernel.org \
    --cc=mtk.manpages@gmail.com \
    --cc=neilb@suse.de \
    --cc=pjt@google.com \
    --cc=riel@redhat.com \
    --cc=rientjes@google.com \
    --cc=rlove@google.com \
    --cc=sanjay@google.com \
    --cc=tglek@mozilla.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.