Re: [RFC, 6/7] NUMA hotplug emulator

From: Greg KH
Date: Thu May 13 2010 - 15:07:33 EST


On Thu, May 13, 2010 at 11:49:38AM -0700, Dave Hansen wrote:
> On Thu, 2010-05-13 at 11:15 -0700, Greg KH wrote:
> > > echo "physical_address=0x40000000 numa_node=3" > memory/probe
> > >
> > > I'd *GREATLY* prefer that over this new syntax. The existing mechanism
> > > is obtuse enough, and the ',3' makes it more so.
> > >
> > > We should have the code around to parse arguments like that, too, since
> > > we use it for the boot command-line.
> >
> > If you are going to be doing something like this, please use configfs,
> > that is what it is designed for, not sysfs.
>
> That's probably a really good point, especially since configfs didn't
> even exist when we made this 'probe' file thingy. It never was a great
> fit for sysfs anyway.

Really? configfs was added in 2.6.16, when was this probe file added?

thanks,

greg k-h
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