linux-kernel - Re: [PATCH 3/3 v6] IB: expand ib_umem

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Message-ID: <20080408212912.GI29410@sgi.com>
Date:	Tue, 8 Apr 2008 14:29:12 -0700
From:	akepner@....com
To:	Roland Dreier <rdreier@...co.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Tony Luck <tony.luck@...el.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Jes Sorensen <jes@....com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	David Miller <davem@...emloft.net>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Grant Grundler <grundler@...isc-linux.org>,
	Michael Ellerman <michael@...erman.id.au>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3 v6] IB: expand ib_umem_get() prototype

On Tue, Apr 08, 2008 at 12:40:21PM -0700, Roland Dreier wrote:
> All of this looks good to me, and I'm happy we are finally fixing this
> up.  However, now that it is finally ready to merge, I started thinking
> about the libmthca changes required to handle this, and I realized that
> we can actually avoid this:
> .....
> with my proposed change, the only difference is:
> 
>  new kernel, old userspace: current behavior (subtle failure on Altix),
>                             plus print a warning telling people to
>                             update userspace.
> ....
> 
> Andrew: if Arthur agrees with this, please roll the patch below into the
> current IB patch you have as part of the dma attrs series.

Sounds fine to me, Roland. 

Acked-by: Arthur Kepner <akepner@....com>

-- 
Arthur

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