From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Mon, 25 Sep 2017 15:50:07 +0200 From: Christoph Hellwig To: Hannes Reinecke Cc: Christoph Hellwig , Jens Axboe , Keith Busch , Sagi Grimberg , linux-nvme@lists.infradead.org, linux-block@vger.kernel.org Subject: Re: [PATCH 8/9] nvme: implement multipath access to nvme subsystems Message-ID: <20170925135007.GA9725@lst.de> References: <20170925134031.10548-1-hch@lst.de> <20170925134031.10548-9-hch@lst.de> <1fb2f077-151a-b02f-2bf5-329ef5951a68@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1fb2f077-151a-b02f-2bf5-329ef5951a68@suse.de> List-ID: On Mon, Sep 25, 2017 at 03:47:43PM +0200, Hannes Reinecke wrote: > Can't we make the multipath support invisible to the host? > IE check the shared namespaces before creating the device node, and just > move them under the existing namespaces if one exists? That was what my first version did, but various people talked me out of it. Unfortunately just multiplexing breaks a few things, including the userspace passthrough ioctls. From mboxrd@z Thu Jan 1 00:00:00 1970 From: hch@lst.de (Christoph Hellwig) Date: Mon, 25 Sep 2017 15:50:07 +0200 Subject: [PATCH 8/9] nvme: implement multipath access to nvme subsystems In-Reply-To: <1fb2f077-151a-b02f-2bf5-329ef5951a68@suse.de> References: <20170925134031.10548-1-hch@lst.de> <20170925134031.10548-9-hch@lst.de> <1fb2f077-151a-b02f-2bf5-329ef5951a68@suse.de> Message-ID: <20170925135007.GA9725@lst.de> On Mon, Sep 25, 2017@03:47:43PM +0200, Hannes Reinecke wrote: > Can't we make the multipath support invisible to the host? > IE check the shared namespaces before creating the device node, and just > move them under the existing namespaces if one exists? That was what my first version did, but various people talked me out of it. Unfortunately just multiplexing breaks a few things, including the userspace passthrough ioctls.