From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-qc0-f177.google.com ([209.85.216.177]:51098 "EHLO mail-qc0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751044AbbAKSj2 (ORCPT ); Sun, 11 Jan 2015 13:39:28 -0500 Date: Sun, 11 Jan 2015 13:39:24 -0500 From: Tejun Heo To: Christoph Hellwig Cc: Jens Axboe , David Howells , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-mtd@lists.infradead.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org Subject: Re: [PATCH 12/12] fs: remove default_backing_dev_info Message-ID: <20150111183924.GQ25319@htj.dyndns.org> References: <1420739133-27514-1-git-send-email-hch@lst.de> <1420739133-27514-13-git-send-email-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1420739133-27514-13-git-send-email-hch@lst.de> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Thu, Jan 08, 2015 at 06:45:33PM +0100, Christoph Hellwig wrote: > Now that default_backing_dev_info is not used for writeback purposes we can > git rid of it easily: > > - instead of using it's name for tracing unregistered bdi we just use > "unknown" > - btrfs and ceph can just assign the default read ahead window themselves > like several other filesystems already do. > - we can assign noop_backing_dev_info as the default one in alloc_super. > All filesystems already either assigned their own or > noop_backing_dev_info. > > Signed-off-by: Christoph Hellwig Reviewed-by: Tejun Heo Thanks. -- tejun