From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Goyal Subject: Re: Questions on block drivers, REQ_FLUSH and REQ_FUA Date: Wed, 25 May 2011 15:10:24 -0400 Message-ID: <20110525191024.GB6724@redhat.com> References: <8E109506CAF2B94185C68859@nimrod.local> <20110524223220.GA379@redhat.com> <20110525085950.GC10146@htj.dyndns.org> <2D8E6A46790AC2395383D82B@Ximines.local> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Tejun Heo , linux-fsdevel@vger.kernel.org To: Alex Bligh Return-path: Received: from mx1.redhat.com ([209.132.183.28]:36063 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753250Ab1EYTKd (ORCPT ); Wed, 25 May 2011 15:10:33 -0400 Content-Disposition: inline In-Reply-To: <2D8E6A46790AC2395383D82B@Ximines.local> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Wed, May 25, 2011 at 06:43:01PM +0100, Alex Bligh wrote: [..] > Thanks once again. My driver is currently request-based. Is there any > significant advantage converting it to be bio based? Some people try to avoid the ovhead of elevator if device is very fast and try to go for bio based driver. Or they create both the modes and let user choose one. Thanks Vivek > > -- > Alex Bligh