linux-kernel - Re: [PATCH] slab debug and ARCH_SLAB

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Message-ID: <84144f020610200156t1745b3d6xee0b0a24e6a1bba5@mail.gmail.com>
Date:	Fri, 20 Oct 2006 11:56:08 +0300
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Kevin Hilman" <khilman@...sta.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] slab debug and ARCH_SLAB_MINALIGN don't get along

Hi Kevin,

On 10/19/06, Kevin Hilman <khilman@...sta.com> wrote:
> When CONFIG_SLAB_DEBUG is used in combination with ARCH_SLAB_MINALIGN,
> some debug flags should be disabled which depend on BYTES_PER_WORD
> alignment.
>
> The disabling of these debug flags is not properly handled when
> BYTES_PER_WORD < ARCH_SLAB_MEMALIGN < cache_line_size()
>
> This patch fixes that and also adds an alignment check to
> cache_alloc_debugcheck_after() when ARCH_SLAB_MINALIGN is used.

You forgot to mention which case you are fixing in the patch
description (that is, SLAB_HWCACHE_ALIGN, when cache_line_size() >
BYTES_PER_WORD) which made the patch bit hard to decipher. Anyway,
looks good, thanks!

                                              Pekka
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