From: Christoph Lameter <clameter@sgi.com>
To: Balbir Singh <balbir@in.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ken Chen <kenchen@google.com>, Hugh Dickins <hugh@veritas.com>,
Andrew Morton <akpm@osdl.org>,
linux-mm@kvack.org
Subject: Re: [patch] not to disturb page LRU state when unmapping memory range
Date: Wed, 31 Jan 2007 11:30:01 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.64.0701311126580.16788@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <45C0EAB7.5040903@in.ibm.com>
On Thu, 1 Feb 2007, Balbir Singh wrote:
> Does it make sense to do this only for shared mapped pages?
>
> if (pte_young(ptent) && (page_mapcount(page) > 1))
> SetPageReferenced(page);
If the page is only mapped by the process releasing the memory then it may
be considered less likely that the page is reused. But the basic issue
that Huge mentioned remains.
--
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>
next prev parent reply other threads:[~2007-01-31 19:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-31 4:41 [patch] not to disturb page LRU state when unmapping memory range Ken Chen
2007-01-31 12:26 ` Peter Zijlstra
2007-01-31 19:15 ` Balbir Singh
2007-01-31 19:30 ` Christoph Lameter [this message]
2007-01-31 18:02 ` Hugh Dickins
2007-01-31 21:43 ` Peter Zijlstra
2007-01-31 21:51 ` Ken Chen
2007-01-31 22:04 ` Andrew Morton
2007-01-31 22:25 ` Peter Zijlstra
2007-01-31 22:48 ` Andrew Morton
2007-01-31 23:52 ` Peter Zijlstra
2007-02-01 0:33 ` Andrew Morton
2007-02-01 3:21 ` Rik van Riel
2007-02-01 3:13 ` Rik van Riel
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.4.64.0701311126580.16788@schroedinger.engr.sgi.com \
--to=clameter@sgi.com \
--cc=a.p.zijlstra@chello.nl \
--cc=akpm@osdl.org \
--cc=balbir@in.ibm.com \
--cc=hugh@veritas.com \
--cc=kenchen@google.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 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).