From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx133.postini.com [74.125.245.133]) by kanga.kvack.org (Postfix) with SMTP id 7748D6B00E7 for ; Sat, 14 Apr 2012 08:25:24 -0400 (EDT) Message-ID: <1334406314.2528.90.camel@twins> Subject: Re: [Lsf] [RFC] writeback and cgroup From: Peter Zijlstra Date: Sat, 14 Apr 2012 14:25:14 +0200 In-Reply-To: <20120411154005.GD16692@redhat.com> References: <20120403183655.GA23106@dhcp-172-17-108-109.mtv.corp.google.com> <20120404145134.GC12676@redhat.com> <20120407080027.GA2584@quack.suse.cz> <20120410180653.GJ21801@redhat.com> <20120410210505.GE4936@quack.suse.cz> <20120410212041.GP21801@redhat.com> <20120410222425.GF4936@quack.suse.cz> <20120411154005.GD16692@redhat.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Vivek Goyal Cc: Jan Kara , 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, cgroups@vger.kernel.org, linux-fsdevel@vger.kernel.org On Wed, 2012-04-11 at 11:40 -0400, Vivek Goyal wrote: >=20 > Ok, that's good to know. How would we configure this special bdi? I am > assuming there is no backing device visible in /sys/block//queue/= ? > Same is true for network file systems.=20 root@twins:/usr/src/linux-2.6# awk '/nfs/ {print $3}' /proc/self/mountinfo = | while read bdi ; do ls -la /sys/class/bdi/${bdi}/ ; done ls: cannot access /sys/class/bdi/0:20/: No such file or directory total 0 drwxr-xr-x 3 root root 0 2012-03-27 23:18 . drwxr-xr-x 35 root root 0 2012-03-27 23:02 .. -rw-r--r-- 1 root root 4096 2012-04-14 14:22 max_ratio -rw-r--r-- 1 root root 4096 2012-04-14 14:22 min_ratio drwxr-xr-x 2 root root 0 2012-04-14 14:22 power -rw-r--r-- 1 root root 4096 2012-04-14 14:22 read_ahead_kb lrwxrwxrwx 1 root root 0 2012-03-27 23:18 subsystem -> ../../../../clas= s/bdi -rw-r--r-- 1 root root 4096 2012-03-27 23:18 uevent -- 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