Re: [PATCH v4 2/5] NFSD: Add READ_PLUS data support

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> On Sep 4, 2020, at 11:24 AM, Bruce Fields <bfields@xxxxxxxxxxxx> wrote:
> 
> I'm not seeing the RDMA connection, by the way.  SEEK and READ_PLUS
> should work the same over TCP and RDMA.

The READ_PLUS result is not DDP-eligible because there's no way for
the client to predict in advance whether there will be data (which
can be moved by RDMA), holes or patterns (which cannot), nor how
many of each there might be.

Therefore I've asked Anna to leave READ_PLUS disabled on RDMA mounts.


--
Chuck Lever






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