linux-kernel - Re: [RFC PATCH rdma-next 08/10] RDMA/rxe: Implement flush execution in responder side

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Date:   Tue, 11 Jan 2022 16:48:26 -0400
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     "lizhijian@...itsu.com" <lizhijian@...itsu.com>
Cc:     "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "zyjzyj2000@...il.com" <zyjzyj2000@...il.com>,
        "aharonl@...dia.com" <aharonl@...dia.com>,
        "leon@...nel.org" <leon@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "mbloch@...dia.com" <mbloch@...dia.com>,
        "liangwenpeng@...wei.com" <liangwenpeng@...wei.com>,
        "yangx.jy@...itsu.com" <yangx.jy@...itsu.com>,
        "rpearsonhpe@...il.com" <rpearsonhpe@...il.com>,
        "y-goto@...itsu.com" <y-goto@...itsu.com>
Subject: Re: [RFC PATCH rdma-next 08/10] RDMA/rxe: Implement flush execution
 in responder side

On Tue, Jan 11, 2022 at 05:34:36AM +0000, lizhijian@...itsu.com wrote:

> Yes, that's true. that's because only pmem has ability to persist data.
> So do you mean we don't need to prevent user to create/register a persistent
> access flag to a non-pmem MR? it would be a bit confusing if so.

Since these extensions seem to have a mode that is unrelated to
persistent memory, I'm not sure it makes sense to link the two things.

Jason