Re: [PATCH] slab debug and ARCH_SLAB_MINALIGN don't get along

From: Pekka Enberg
Date: Fri Oct 20 2006 - 04:56:37 EST


Hi Kevin,

On 10/19/06, Kevin Hilman <khilman@xxxxxxxxxx> 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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