linux-kernel - Re: [patch 2/2] slub: enforce cpuset restrictions for cpu slabs

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Tue, 3 Mar 2009 15:14:07 -0500 (EST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	David Rientjes <rientjes@...gle.com>
cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Menage <menage@...gle.com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 2/2] slub: enforce cpuset restrictions for cpu slabs

On Tue, 3 Mar 2009, David Rientjes wrote:

> This change doesn't affect the fastpath in any significant way for systems
> that have not configured multiple cpusets; systems that have configured
> more than one cpuset may have specific NUMA locality requirements that
> slub is dismissing without this patch.

SLUB is also "dismissing" lots of other NUMA locality requirements since
it relies on the page allocators for this. SLUB does *not* realize memory
policy and/or cpuset support for individual objects. NUMA locality is
implemented only (aside from explicit requests of memory from a
certain node) when slab page allocations are performed.

--
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/