From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx140.postini.com [74.125.245.140]) by kanga.kvack.org (Postfix) with SMTP id 6E1F66B00F9 for ; Wed, 4 Apr 2012 14:56:12 -0400 (EDT) Received: by dakh32 with SMTP id h32so745361dak.9 for ; Wed, 04 Apr 2012 11:56:11 -0700 (PDT) Date: Wed, 4 Apr 2012 11:56:05 -0700 From: Tejun Heo Subject: Re: [Lsf] [RFC] writeback and cgroup Message-ID: <20120404185605.GC29686@dhcp-172-17-108-109.mtv.corp.google.com> References: <20120403183655.GA23106@dhcp-172-17-108-109.mtv.corp.google.com> <20120404145134.GC12676@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Steve French Cc: Vivek Goyal , ctalbott@google.com, rni@google.com, andrea@betterlinux.com, containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, lsf@lists.linux-foundation.org, linux-mm@kvack.org, jmoyer@redhat.com, lizefan@huawei.com, linux-fsdevel@vger.kernel.org, cgroups@vger.kernel.org On Wed, Apr 04, 2012 at 10:36:04AM -0500, Steve French wrote: > > How do you take care of thorottling IO to NFS case in this model? Current > > throttling logic is tied to block device and in case of NFS, there is no > > block device. > > Similarly smb2 gets congestion info (number of "credits") returned from > the server on every response - but not sure why congestion > control is tied to the block device when this would create > problems for network file systems I hope the previous replies answered this. It's about writeback getting pressure from bdi and isn't restricted to block devices. Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org