netdev - Re: [PATCH V2 net-next 4/7] rds: support for zcopy completion notification

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Message-ID: <4f85d732-f060-9510-6fdb-1458aa4cf435@oracle.com>
Date:   Wed, 14 Feb 2018 13:39:35 -0800
From:   Santosh Shilimkar <santosh.shilimkar@...cle.com>
To:     Sowmini Varadhan <sowmini.varadhan@...cle.com>
Cc:     David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
        willemdebruijn.kernel@...il.com, rds-devel@....oracle.com
Subject: Re: [PATCH V2 net-next 4/7] rds: support for zcopy completion
 notification

On 2/14/2018 1:25 PM, Sowmini Varadhan wrote:
> On (02/14/18 13:10), Santosh Shilimkar wrote:
>>>>> RDS support true zero copy already with RDMA transport so some of
>>>>> this code can easily get confused.
> 
> btw, another way to solve this is to have the RDMA code use the
> suffix "rdma" (which is what it really is) as needed.
> 
And same breath,here zcopy is No message from user ;-)
ZCOPY is otherwise often tied with RDMA directly.

Renaming churns are not that useful and I definitely agree
with what Dave said if it was renaming change to the
existing code like what you are suggesting with 'rdma'

Anyways I don't want to contest this too much since I can
follow that code and know what each does and means :-)

The comment was long term readability perspective for
some one completely new reading the code and being able to
distinguish the different modes.

Regards,
Santosh