linux-kernel - Re: [PATCH] pci: show dma

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Message-ID: <20081023194924.GA10531@kroah.com>
Date:	Thu, 23 Oct 2008 12:49:24 -0700
From:	Greg KH <greg@...ah.com>
To:	Grant Grundler <grundler@...isc-linux.org>
Cc:	Matthew Wilcox <matthew@....cx>, Yinghai Lu <yinghai@...nel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH] pci: show dma_mask bits in /sys

On Thu, Oct 23, 2008 at 01:36:52PM -0600, Grant Grundler wrote:
> On Thu, Oct 23, 2008 at 08:39:23AM -0700, Greg KH wrote:
> > On Thu, Oct 23, 2008 at 12:44:12AM -0600, Grant Grundler wrote:
> > > 
> > > Lastly, /sys seems to have over run even /proc. On an rx2600 (ia64):
> > > grundler@...prf3:/usr/src/linux-2.6$ find /sys ! -type d | wc
> > >    6288    6296  264893
> > 
> > Is this causing some kind of problem for your systems?
> 
> Nope. Just an observation on the "forest" (vs individual "trees").
> 
> > /sys shows far more information than /proc does, so of course it would
> > be larger in quantity.
> 
> Yes - and /sys is better organized (hierarchial in general).
> But it's getting harder to find stuff because there is so much now.
> Any comments on adding DMA attributes (e.g. dma_mask_bits) to /sys?

Sorry, wasn't paying attention.  All I ask is that if you do add new
sysfs files, you document them in the proper format in
Documentation/ABI/

thanks,

greg k-h
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