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Wong" , linux-xfs@vger.kernel.org, Gao Xiang , Theodore Ts'o , linux-ext4@vger.kernel.org, Coly Li , linux-bcache@vger.kernel.org, Boaz Harrosh , Bob Peterson , cluster-devel@redhat.com Subject: Re: [PATCH V10 18/19] block: kill QUEUE_FLAG_NO_SG_MERGE Message-ID: <20181116164028.GW23828@vader> References: <20181115085306.9910-1-ming.lei@redhat.com> <20181115085306.9910-19-ming.lei@redhat.com> <20181116021811.GM23828@vader> <20181116135922.GO3165@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181116135922.GO3165@lst.de> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 16, 2018 at 02:59:22PM +0100, Christoph Hellwig wrote: > On Thu, Nov 15, 2018 at 06:18:11PM -0800, Omar Sandoval wrote: > > This commit message wasn't very clear. Is it the case that > > QUEUE_FLAG_NO_SG_MERGE is no longer set by any drivers? > > I think he wants to say that not doing S/G merging is rather pointless > with the current setup of the I/O path, as it isn't going to save > you a significant amount of cycles. Okay, that makes sense. Ming, you can add Reviewed-by: Omar Sandoval