linux-kernel - Re: [patch 2/2] slab: always consider arch mandated alignment

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:	Thu, 27 Jul 2006 07:24:38 +0300 (EEST)
From:	Pekka J Enberg <penberg@...Helsinki.FI>
To:	Christoph Lameter <clameter@....com>
cc:	Manfred Spraul <manfred@...orfullife.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: [patch 2/2] slab: always consider arch mandated alignment

On Wed, 26 Jul 2006, Christoph Lameter wrote:
> A slab user is setting alignment in order to optimize performance not for 
> correctness. Most users that I know of can live with misalignments. If 
> that would not be the case then this code would never have worked.

No, caller and architecture mandated alignment is set for correctness. The 
slab allocator can already optimize for performance on its own 
(SLAB_HWCACHE_ALIGN).

				Pekka
-
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/