All of lore.kernel.org
 help / color / mirror / Atom feed
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 14:14:39 -0800 (PST)	[thread overview]
Message-ID: <Pine.LNX.4.64.0702081411030.14424@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20070208140338.971b3f53.akpm@linux-foundation.org>

On Thu, 8 Feb 2007, Andrew Morton wrote:

> During the vmscan we encounter a page at the tail of the inactive list
> which we want to reclaim, but it's dirty.  So we start writeout and then
> move it to the head of the inactive list and keep scanning.
> 
> When writeback completes, we take a look at the page to see if it still
> seems to be reclaimable and if so, move it to the tail of the inactive list
> so that it will be reclaimed very soon.

Still reclaimable means on the LRU and not activated?
 
> PG_reclaim is used to indicate pages which need this treatment.

We have a mechanism to trigger events based on the end of writeback 
(also triggered in end_page_writeback). But I guess we are not using it 
because we do not have a process context?

--
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:[~2007-02-08 22:14 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 [this message]
2007-02-08 22:24               ` Andrew Morton
2007-02-08 22:26                 ` Christoph Lameter
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

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=Pine.LNX.4.64.0702081411030.14424@schroedinger.engr.sgi.com \
    --to=clameter@sgi.com \
    --cc=akpm@linux-foundation.org \
    --cc=hugh@veritas.com \
    --cc=linux-mm@kvack.org \
    /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.