linux-kernel - Re: [PATCH 2/2] mm: Fix documentation of min_unmapped

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

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20090616184100.99AC.A69D9226@jp.fujitsu.com>
Date:	Tue, 16 Jun 2009 18:41:16 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	kosaki.motohiro@...fujitsu.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Wu Fengguang <fengguang.wu@...el.com>, linuxram@...ibm.com,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] mm: Fix documentation of min_unmapped_ratio

> -A percentage of the total pages in each zone.  Zone reclaim will only
> -occur if more than this percentage of pages are file backed and unmapped.
> -This is to insure that a minimal amount of local pages is still available for
> -file I/O even if the node is overallocated.
> +This is a percentage of the total pages in each zone. Zone reclaim will
> +only occur if more than this percentage of pages are in a state that
> +zone_reclaim_mode allows to be reclaimed.
> +
> +If zone_reclaim_mode has the value 4 OR'd, then the percentage is compared
> +against all file-backed unmapped pages including swapcache pages and tmpfs
> +files. Otherwise, only unmapped pages backed by normal files but not tmpfs
> +files and similar are considered.
>  
>  The default is 1 percent.

looks good.



--
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/