Re: [PATCH v1 04/12] xprtrdma: Remove last ib_reg_phys_mr() call site

Chuck Lever
2015-07-11T18:50:58Z

> On Jul 11, 2015, at 6:34 AM, Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org> wrote:
>
> On Thu, Jul 09, 2015 at 04:42:18PM -0400, Chuck Lever wrote:
>> All HCA providers have an ib_get_dma_mr() verb. Thus
>> rpcrdma_ia_open() will either grab the device's local_dma_key if one
>> is available, or it will call ib_get_dma_mr() which is a 100%
>> guaranteed fallback. There is never any need to use the
>> ib_reg_phys_mr() code path in rpcrdma_register_internal(), so it can
>> be removed.
>
> Can you also send a follow-on to remove ib_reg_phys_mr entirely from
> all core (= non-staging) code?

I would prefer to run this by Doug Oucharek first, as a courtesy.
Unless I’m mistaken, the Lustre client is supposed to be on its
way into the kernel, not on its way out.

Anyone have Doug’s e-mail address?

--
Chuck Lever
chucklever-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

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