linux-kernel - Re: [PATCH V3] x86, UV: BAU performance and error recovery

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Date:	Mon, 31 May 2010 14:48:49 -0500
From:	Cliff Wickman <cpw@....com>
To:	Greg KH <gregkh@...e.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	mingo@...e.hu
Subject: Re: [PATCH V3] x86, UV: BAU performance and error recovery


On Fri, May 28, 2010 at 05:05:26PM -0700, Greg KH wrote:
> On Fri, May 28, 2010 at 06:36:23PM -0500, Cliff Wickman wrote:
> > /proc/sgi_uv/bau_tunables would be a read/write file to display and change
> > nine threshold and delay values for tuning the BAU driver.
> > 
> > I like debugfs, except that a distro may not build the kernel with it
> > configured on.  The tunables should be available as administrative
> > options on a customer kernel, not just as a development tool.
> 
> All distros have debugfs turned on now, and mounted, due to the perf
> interface there, as well as a lot of other good debug information that
> is present.
> 
> So you don't have to worry about that.

Good to hear.  That makes the choice simple.
> 
...
> 
> So please, just put it in debugfs.
> 
> thanks,
> 
> greg k-h

Okay.  I moved the file to debugfs, and will re-submit the patch
momentarily.

-Cliff
-- 
Cliff Wickman
SGI
cpw@....com
(651) 683-3824
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