From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 26 Jul 2006 13:37:42 +0300 (EEST) From: Pekka J Enberg Subject: Re: [patch 2/2] slab: always consider arch mandated alignment In-Reply-To: <20060726101340.GE9592@osiris.boeblingen.de.ibm.com> Message-ID: References: <20060722110601.GA9572@osiris.boeblingen.de.ibm.com> <20060722162607.GA10550@osiris.ibm.com> <20060723073500.GA10556@osiris.ibm.com> <20060723162427.GA10553@osiris.ibm.com> <20060726085113.GD9592@osiris.boeblingen.de.ibm.com> <20060726101340.GE9592@osiris.boeblingen.de.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Heiko Carstens Cc: Christoph Lameter , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Martin Schwidefsky , manfred@colorfullife.com List-ID: On Wed, 26 Jul 2006, Heiko Carstens wrote: > It's enough to fix the ARCH_SLAB_MINALIGN problem. But it does _not_ fix the > ARCH_KMALLOC_MINALIGN problem. s390 currently only uses ARCH_KMALLOC_MINALIGN > since that should be good enough and it doesn't disable as much debugging > as ARCH_SLAB_MINALIGN does. > What exactly isn't clear from the description of the first patch? Or why do > you consider it bogus? Now I am confused. What do you mean by "doesn't disable as much debugging as ARCH_SLAB_MINALIGN does"? AFAICT, the SLAB_RED_ZONE and SLAB_STORE_USER options _require_ BYTES_PER_WORD alignment, so if s390 requires 8 byte alignment, you can't have them debugging anyhow... Pekka -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org