From: Gleb Natapov <gleb@minantech.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: yipee <yipeeyipeeyipeeyipee@yahoo.com>, linux-kernel@vger.kernel.org
Subject: Re: changing physical page
Date: Sun, 5 Feb 2006 09:00:28 +0200 [thread overview]
Message-ID: <20060205070027.GA11558@minantech.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0602041518230.8867@goblin.wat.veritas.com>
On Sat, Feb 04, 2006 at 03:20:00PM +0000, Hugh Dickins wrote:
> On Sat, 4 Feb 2006, yipee wrote:
> > Hugh Dickins <hugh <at> veritas.com> writes:
> > > I'll assume that when you say "page owned by a user program", you're
> > > meaning a private page, not a shared file page mapped into the program.
> > >
> > > If you're asking about what currently happens, the answer is "No".
> > >
> > > If you're asking about what you can assume, the answer is "Yes".
> >
> > So you are saying that the current kernel doesn't move these kind of pages?
>
> If you don't have swap (one of the conditions you gave), yes.
>
And what if application forks and writes to the private page? Kernel
actually memcpy the page to another location.
--
Gleb.
next prev parent reply other threads:[~2006-02-05 7:01 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-02 15:08 yipee
2006-02-02 15:50 ` linux-os (Dick Johnson)
2006-02-02 16:23 ` yipee
2006-02-02 16:47 ` linux-os (Dick Johnson)
2006-02-03 4:58 ` yipee
2006-02-02 17:18 ` Hugh Dickins
2006-02-04 14:29 ` yipee
2006-02-04 15:20 ` Hugh Dickins
2006-02-05 7:00 ` Gleb Natapov [this message]
2006-02-05 11:55 ` Hugh Dickins
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