linux-kernel - Re: upcoming kerneloops.org item: get_page_from

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Message-ID: <84144f020906241143w76f57031u1cc185bd81d6caf7@mail.gmail.com>
Date:	Wed, 24 Jun 2009 21:43:01 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	arjan@...radead.org, linux-kernel@...r.kernel.org,
	torvalds@...ux-foundation.org, cl@...ux-foundation.org,
	npiggin@...e.de
Subject: Re: upcoming kerneloops.org item: get_page_from_freelist

On Wed, Jun 24, 2009 at 9:30 PM, Andrew Morton<akpm@...ux-foundation.org> wrote:
> What's the expected value of s->min in allocate_slab()?  In what
> situations would it be >0?

When object size in the cache doesn't fit on a single page. See the
get_order() at the end of calculate_sizes() for details.
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