From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 8 Feb 2017 14:36:32 +0100 From: Christoph Hellwig To: Andrey Kuzmin Cc: Christoph Hellwig , Jens Axboe , linux-block@vger.kernel.org, linux-nvme@lists.infradead.org Subject: Re: [PATCH 4/4] nvme: support ranged discard requests Message-ID: <20170208133632.GA13064@lst.de> References: <20170208131343.4003-1-hch@lst.de> <20170208131343.4003-5-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: List-ID: On Wed, Feb 08, 2017 at 01:32:22PM +0000, Andrey Kuzmin wrote: > On Wed, Feb 8, 2017, 16:14 Christoph Hellwig wrote: > > > NVMe supports up to 255 ranges per DSM command, > > > 256 per spec, with number of ranges being zero-based. You're right. I'll do another round of the patch. That beeing said in my tests I never even managed to get three-digit ranges anyway with any workload. From mboxrd@z Thu Jan 1 00:00:00 1970 From: hch@lst.de (Christoph Hellwig) Date: Wed, 8 Feb 2017 14:36:32 +0100 Subject: [PATCH 4/4] nvme: support ranged discard requests In-Reply-To: References: <20170208131343.4003-1-hch@lst.de> <20170208131343.4003-5-hch@lst.de> Message-ID: <20170208133632.GA13064@lst.de> On Wed, Feb 08, 2017@01:32:22PM +0000, Andrey Kuzmin wrote: > On Wed, Feb 8, 2017, 16:14 Christoph Hellwig wrote: > > > NVMe supports up to 255 ranges per DSM command, > > > 256 per spec, with number of ranges being zero-based. You're right. I'll do another round of the patch. That beeing said in my tests I never even managed to get three-digit ranges anyway with any workload.