From mboxrd@z Thu Jan 1 00:00:00 1970 From: Artem Bityutskiy Subject: Re: [PATCH, RFC] simplify writeback thread creation Date: Fri, 09 Jul 2010 18:49:11 +0300 Message-ID: <1278690551.9953.146.camel@localhost> References: <20100707225242.GA28802@lst.de> <4C35C292.9020507@kernel.dk> <1278598877.20321.34.camel@localhost> <4C35E7D5.8020809@kernel.dk> <1278602632.9953.4.camel@localhost> <4C360998.9040609@kernel.dk> <1278614602.7365.8.camel@localhost.localdomain> <20100708184811.GA17593@lst.de> <1278661979.9953.8.camel@localhost> <20100709145150.GA5891@lst.de> Reply-To: dedekind1@gmail.com Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Jens Axboe , linux-fsdevel@vger.kernel.org To: Christoph Hellwig Return-path: Received: from smtp.nokia.com ([192.100.122.233]:16720 "EHLO mgw-mx06.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757288Ab0GIPxl (ORCPT ); Fri, 9 Jul 2010 11:53:41 -0400 In-Reply-To: <20100709145150.GA5891@lst.de> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Fri, 2010-07-09 at 16:51 +0200, Christoph Hellwig wrote: > On Fri, Jul 09, 2010 at 10:52:59AM +0300, Artem Bityutskiy wrote: > > But what about cases like 'dd if=3D/dev/zero of=3D/dev/sda4'? They = also > > involve dirty data write-back. >=20 > But only on the bdev fs inode.=20 OK, I do not know details that code and how it works, need to investigate, but I just thought it is a different case comparing to the "create bdi task only when an FS is mounter on top". And just wanted to point that things may be not so elegant. --=20 Best Regards, Artem Bityutskiy (=D0=90=D1=80=D1=82=D1=91=D0=BC =D0=91=D0=B8=D1=82=D1=8E= =D1=86=D0=BA=D0=B8=D0=B9) -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html