linux-kernel - Re: [BUG] SLOB breaks Crypto

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Message-ID: <AANLkTil4bdUVF0eNiBZl6pIMZH-ERwJxh6sq6SSHI0kb@mail.gmail.com>
Date:	Wed, 19 May 2010 08:53:41 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	David Miller <davem@...emloft.net>
Cc:	lethal@...ux-sh.org, mpm@...enic.com, herbert@...dor.apana.org.au,
	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: [BUG] SLOB breaks Crypto

Hi David,

On Wed, May 19, 2010 at 1:40 AM, David Miller <davem@...emloft.net> wrote:
> I don't even know of a 32-bit chip outside of x86 that doesn't
> potentially emit alignment requiring 64-bit memory operations for
> 64-bit objects.  So what SLOB is doing with a different default is
> even more strange.  And I bet you that even without the requirement,
> x86 runs faster with 64-bit alignment of 64-bit objects.

Faster, sure, but SLOB is not about being fast, it's about being space
efficient.

                        Pekka
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