linux-kernel - Re: [RFC 0/8] Cpuset aware writeback

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

Message-ID: <Pine.LNX.4.64.0701161208590.2905@schroedinger.engr.sgi.com>
Date:	Tue, 16 Jan 2007 12:10:38 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
cc:	akpm@...l.org, Paul Menage <menage@...gle.com>,
	linux-kernel@...r.kernel.org,
	Nick Piggin <nickpiggin@...oo.com.au>, linux-mm@...ck.org,
	Andi Kleen <ak@...e.de>, Paul Jackson <pj@....com>,
	Dave Chinner <dgc@....com>
Subject: Re: [RFC 0/8] Cpuset aware writeback

On Tue, 16 Jan 2007, Peter Zijlstra wrote:

> > B. We add a new counter NR_UNRECLAIMABLE that is subtracted
> >    from the available pages in a node. This allows us to
> >    accurately calculate the dirty ratio even if large portions
> >    of the node have been allocated for huge pages or for
> >    slab pages.
> 
> What about mlock'ed pages?

mlocked pages can be dirty and written back right? So for the
dirty ratio calculation they do not play a role. We may need a
separate counter for mlocked pages if they are to be considered
for other decisions in the VM.

> Otherwise it all looks good.
> 
> Acked-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>

Thanks.
-
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/