[RFC PATCH 09/09] Introduce cache=rdma moutning option

Steve French smfrench at gmail.com
Fri May 18 20:44:44 UTC 2018

On Fri, May 18, 2018 at 12:00 PM, Long Li via samba-technical
<samba-technical at lists.samba.org> wrote:
>> Subject: Re: [RFC PATCH 09/09] Introduce cache=rdma moutning option
>> On Thu, May 17, 2018 at 05:22:14PM -0700, Long Li wrote:
>> > From: Long Li <longli at microsoft.com>
>> >
>> > When cache=rdma is enabled on mount options, CIFS do not allocate
>> > internal data buffer pages for I/O, data is read/writen directly to user
>> memory via RDMA.
>> I don't think this should be an option.  For direct I/O without signing or
>> encryption CIFS should always use get_user_pages, with or without RDMA.
> Yes this should be done for all transport. If there are no objections, I'll send patches to change this.

Would this help/change performance much?



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