From: Andrew Morton <akpm@linux-foundation.org>
To: Christoph Lameter <clameter@sgi.com>
Cc: Hugh Dickins <hugh@veritas.com>, linux-mm@kvack.org
Subject: Re: Drop PageReclaim()
Date: Thu, 8 Feb 2007 14:37:46 -0800 [thread overview]
Message-ID: <20070208143746.79c000f5.akpm@linux-foundation.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0702081425000.14424@schroedinger.engr.sgi.com>
On Thu, 8 Feb 2007 14:26:48 -0800 (PST)
Christoph Lameter <clameter@sgi.com> wrote:
> On Thu, 8 Feb 2007, Andrew Morton wrote:
>
> > > We have a mechanism to trigger events based on the end of writeback
> > > (also triggered in end_page_writeback).
> >
> > Not sure what you're referring to there.
>
> smp_mb__after_clear_bit();
> wake_up_page(page, PG_writeback);
>
> > > But I guess we are not using it
> > > because we do not have a process context?
> >
> > end_page_writeback() usually runs in hard IRQ context.
>
> Those sleeping on the page must have their own process context
> to do so.
You've lost me. I don't see what that sort of thing has to do with
end_page_writeback() and rotate_reclaimable_page().
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next prev parent reply other threads:[~2007-02-08 22:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-07 14:13 Drop PageReclaim() Christoph Lameter
2007-02-07 14:32 ` Hugh Dickins
2007-02-08 21:20 ` Christoph Lameter
2007-02-08 21:38 ` Christoph Lameter
2007-02-08 21:42 ` Christoph Lameter
2007-02-08 21:55 ` Christoph Lameter
2007-02-08 22:03 ` Andrew Morton
2007-02-08 22:14 ` Christoph Lameter
2007-02-08 22:24 ` Andrew Morton
2007-02-08 22:26 ` Christoph Lameter
2007-02-08 22:37 ` Andrew Morton [this message]
2007-02-08 22:40 ` Christoph Lameter
2007-02-08 23:13 ` Andrew Morton
2007-02-09 0:22 ` Christoph Lameter
2007-02-09 0:39 ` Andrew Morton
2007-02-09 1:06 ` Christoph Lameter
2007-02-09 1:18 ` Andrew Morton
2007-02-11 5:12 ` Rik van Riel
2007-02-07 17:25 ` Andrew Morton
2007-02-08 21:19 ` Christoph Lameter
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