linux-kernel - Re: [PATCH 1/4] mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slab

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] [day] [month] [year] [list]

Date:	Thu, 20 May 2010 18:49:43 +0200
From:	Manfred Spraul <manfred@...orfullife.com>
To:	David Woodhouse <dwmw2@...radead.org>
CC:	Johannes Stezenbach <js@...21.net>,
	Herbert Xu <herbert@...dor.hengli.com.au>,
	David Miller <davem@...emloft.net>, penberg@...helsinki.fi,
	mpm@...enic.com, ken@...elabs.ch, geert@...ux-m68k.org,
	michael-dev@...i-braun.de, linux-kernel@...r.kernel.org,
	linux-crypto@...r.kernel.org, anemo@....ocn.ne.jp
Subject: Re: [PATCH 1/4] mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN
 to <linux/slab_def.h>

On 05/19/2010 08:10 PM, David Woodhouse wrote:
>> * Unless debug options are enabled, the kernel uses cache_line_size()
>> automatically.
>>      
> ... that's a lie.
>
>    
You are right, I didn't notice that there are now 8 and 16-byte kmalloc 
caches.

Apart from that:

KMALLOC_FLAGS is SLAB_HWCACHE_ALIGN.
SLAB_HWCACHE_ALIGN defaults the alignment to cache_line_size().


Did I overlook anything else?

--
     Manfred
--
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/