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Subject: Re: [PATCH 10 of 20] ipath - support for userspace apps using core
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From: "Bryan O'Sullivan" <bos@pathscale.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>, Hugh Dickins <hugh@veritas.com>,
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On Fri, 2006-03-17 at 08:28 -0800, Linus Torvalds wrote:

> kmalloc may be backed by a "struct page", but the point is that it does 
> not honor the page _count_, and as such it is totally unsuitable for any 
> VM usage.

That's fine.  We're not calling dma_free_coherent until after the page
count goes back down to one (the driver is once again the only user).
But this doesn't seem germane to what Nick brought up, anyway.

	<b

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