linux-kernel - Re: [RFC] QoS params patch

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Date:	Thu, 27 Sep 2007 12:18:21 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Valdis.Kletnieks@...edu
Cc:	mgross@...ux.intel.com, Randy Dunlap <randy.dunlap@...cle.com>,
	linux-pm <linux-pm@...ts.linux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] QoS params patch

On Wed, Sep 26, 2007 at 10:53:03PM -0400, Valdis.Kletnieks@...edu wrote:
> On Wed, 26 Sep 2007 17:40:20 PDT, Mark Gross said:
> > --- linux-2.6.23-rc8/kernel/Makefile	2007-09-26 13:54:54.000000000 -0700
> > +++ linux-2.6.23-rc8-qos/kernel/Makefile	2007-09-26 14:06:38.000000000 -
> 0700
> > @@ -9,7 +9,7 @@
> >  	    rcupdate.o extable.o params.o posix-timers.o \
> >  	    kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
> >  	    hrtimer.o rwsem.o latency.o nsproxy.o srcu.o die_notifier.o \
> > -	    utsname.o
> > +	    utsname.o qos_params.o
> 
> So I don't get a choice in the matter if I will be dragging this thing
> around in my kernel, even if I have no intention of using the functionality?
> 
You don't get that option with latency.c either at the moment, and it's
arguable whether it's even worth it. The more curious thing is that while
this qos params seems to be an evolution of Arjan's latency.c (and the
drivers that are using it are updated in the rest of the patch set),
latency.c itself is still compiled in. Is this an oversight, or was it
intentional? One set of latency hinting APIs only, please :-)
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