From mboxrd@z Thu Jan 1 00:00:00 1970 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH 3/9] bio-cgroup controller Date: Fri, 17 Apr 2009 09:20:40 +0900 Message-ID: <20090417092040.1c832c69.kamezawa.hiroyu__46765.4801825576$1239927983$gmane$org@jp.fujitsu.com> References: <1239740480-28125-1-git-send-email-righi.andrea@gmail.com> <1239740480-28125-4-git-send-email-righi.andrea@gmail.com> <20090416152937.b2188370.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20090416152937.b2188370.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Andrew Morton Cc: randy.dunlap-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, menage-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, chlunde-om2ZC0WAoZIXWF+eFR7m5Q@public.gmane.org, eric.rannaud-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, fernando-gVGce1chcLdL9jVzuh4AOg@public.gmane.org, Andrea Righi , dradford-cT2on/YLNlBWk0Htik3J/w@public.gmane.org, agk-9JcytcrH/bA+uJoB2kUjGw@public.gmane.org, subrata-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dave-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, matt-cT2on/YLNlBWk0Htik3J/w@public.gmane.org, roberto-5KDOxZqKugI@public.gmane.org, ngupta-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org List-Id: containers.vger.kernel.org On Thu, 16 Apr 2009 15:29:37 -0700 Andrew Morton wrote: > On Tue, 14 Apr 2009 22:21:14 +0200 > Andrea Righi wrote: > > > Subject: [PATCH 3/9] bio-cgroup controller > > Sorry, but I have to register extreme distress at the name of this. > The term "bio" is well-established in the kernel and here we have a new > definition for the same term: "block I/O". > > "bio" was a fine term for you to have chosen from the user's > perspective, but from the kernel developer perspective it is quite > horrid. The patch adds a vast number of new symbols all into the > existing "bio_" namespace, many of which aren't related to `struct bio' > at all. > > At least, I think that's what's happening. Perhaps the controller > really _is_ designed to track `struct bio'? If so, that's an odd thing > to tell userspace about. > Hmm, how about iotrack-cgroup ? Thanks, -Kame > > > The controller bio-cgroup is used by io-throttle to track writeback IO > > and for properly apply throttling. > > Presumably it tracks all forms of block-based I/O and not just delayed > writeback. > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >