From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl1-f194.google.com ([209.85.214.194]:34349 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727991AbeKAC2k (ORCPT ); Wed, 31 Oct 2018 22:28:40 -0400 Message-ID: <1541006979.196084.138.camel@acm.org> Subject: Re: remove exofs and the T10 OSD code V2 From: Bart Van Assche To: Boaz Harrosh , Christoph Hellwig , martin.petersen@oracle.com Cc: Nick Desaulniers , Nathan Chancellor , Linus Torvalds , osd-dev@open-osd.org, linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Date: Wed, 31 Oct 2018 10:29:39 -0700 In-Reply-To: References: <20181027082019.20838-1-hch@lst.de> Content-Type: text/plain; charset="UTF-7" Mime-Version: 1.0 Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org On Wed, 2018-10-31 at 18:34 +-0200, Boaz Harrosh wrote: +AD4 On 27/10/18 11:20, Christoph Hellwig wrote: +AD4 +AD4 The only real user of the T10 OSD protocol, the pNFS object layout +AD4 +AD4 driver never went to the point of having shipping products, and we +AD4 +AD4 removed it 1.5 years ago. Exofs is just a simple example without +AD4 +AD4 real life users. +AD4 +AD4 +AD4 +AD4 The code has been mostly unmaintained for years and is getting in the +AD4 +AD4 way of block / SCSI changes, so I think it's finally time to drop it. +AD4 +AD4 +AD4 +AD4 Quote from Boaz: +AD4 +AD4 +AD4 +AD4 +ACI-As I said then. It is used in Universities for studies and experiments. +AD4 +AD4 Every once in a while. I get an email with questions and reports. +AD4 +AD4 +AD4 +AD4 But yes feel free to remove the all thing+ACEAIQ +AD4 +AD4 I think I'm changing my mind about this. +AD4 +AFs ... +AF0 The osd driver was accepted in the upstream kernel in 2009. I have checked all commits in Linus' tree for the osd driver that went in since 2009. All changes made by other kernel developers than you are the result of tree-wide refactoring, compiler warning fixes, fixes for issues detected by static source code analyzers or spelling fixes. Hence my question: how big is the user base of the exofs and osd kernel drivers? Thanks, Bart.