linux-mm.kvack.org archive mirror
 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>

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

Thread overview: 10+ 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 ` [RFC v4 1/3] Introduce new system call mvolatile Minchan Kim
2012-12-18  6:47 ` [RFC v4 2/3] Discard volatile page Minchan Kim
2012-12-18  6:47 ` [RFC v4 3/3] add PGVOLATILE vmstat count Minchan Kim
2012-12-18 18:27 ` [RFC v4 0/3] Support volatile for anonymous range Arun Sharma
2012-12-20  1:34   ` Minchan Kim
2012-12-26  2:37 ` Kamezawa Hiroyuki
2012-12-26  3:46   ` Minchan Kim
2012-12-28  0:24     ` Kamezawa Hiroyuki [this message]
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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).