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From: Christoph Lameter <clameter@sgi.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Hugh Dickins <hugh@veritas.com>, linux-mm@kvack.org
Subject: Re: Drop PageReclaim()
Date: Thu, 8 Feb 2007 14:26:48 -0800 (PST)	[thread overview]
Message-ID: <Pine.LNX.4.64.0702081425000.14424@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20070208142431.eb81ae70.akpm@linux-foundation.org>

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.

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  reply	other threads:[~2007-02-08 22:26 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 [this message]
2007-02-08 22:37                   ` Andrew Morton
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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