| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Sun, 27 Dec 2009 23:12:07 -0500
From: Rik van Riel <riel@...hat.com>
To: balbir@...ux.vnet.ibm.com
CC: Minchan Kim <minchan.kim@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
lkml <linux-kernel@...r.kernel.org>,
linux-mm <linux-mm@...ck.org>,
Hugh Dickins <hugh.dickins@...cali.co.uk>,
KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Subject: Re: [PATCH -mmotm-2009-12-10-17-19] Prevent churning of zero page
in LRU list.
On 12/27/2009 10:57 PM, Balbir Singh wrote:
> * Balbir Singh<balbir@...ux.vnet.ibm.com> [2009-12-28 09:26:39]:
>
>> * Rik van Riel<riel@...hat.com> [2009-12-27 22:22:20]:
>>
>>> On 12/27/2009 09:53 PM, Minchan Kim wrote:
>>>>
>>>> VM doesn't add zero page to LRU list.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> Frequent moving of zero page should ideally put it to the head of the
>> LRU list, leaving it untouched is likely to cause it to be scanned
>> often - no? Should this be moved to the unevictable list?
>>
>
> Sorry, I replied to wrong email, I should have been clearer that this
> question is for Minchan Kim.
The answer to your question is all the way up in
Minchan Kim's original email.
The zero page is never on the LRU lists to begin with.
--
All rights reversed.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists