linux-kernel - RE: [PATCH 00/13] hv: clean up dev

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Date:	Thu, 26 Sep 2013 22:36:29 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	Haiyang Zhang <haiyangz@...rosoft.com>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 00/13] hv: clean up dev_attr usage

Greg,

I am currently travelling; when I get back I will take a look.

K. Y

> -----Original Message-----
> From: Greg Kroah-Hartman [mailto:gregkh@...uxfoundation.org]
> Sent: Thursday, September 26, 2013 9:00 AM
> To: KY Srinivasan
> Cc: Haiyang Zhang; devel@...uxdriverproject.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH 00/13] hv: clean up dev_attr usage
> 
> On Tue, Sep 17, 2013 at 06:42:30PM +0000, KY Srinivasan wrote:
> >
> >
> > > -----Original Message-----
> > > From: Greg Kroah-Hartman [mailto:gregkh@...uxfoundation.org]
> > > Sent: Friday, September 13, 2013 11:33 AM
> > > To: KY Srinivasan; Haiyang Zhang
> > > Cc: devel@...uxdriverproject.org; linux-kernel@...r.kernel.org
> > > Subject: [PATCH 00/13] hv: clean up dev_attr usage
> > >
> > > Hi,
> > >
> > > Here's a set of 13 patches to get rid of the dev_attrs use in the hv bus
> > > code, as it will be going away soon.  It's _way_ bigger than all other
> > > conversions I've had to do so far in the kernel, as you were using a
> > > "multiplexor" function for all of these files.
> > >
> > > So, I've broken it up into individual show/store sysfs functions, and
> > > cleaned up a bunch of debug structures that aren't needed and shouldn't
> > > be exported to the rest of the kernel.
> > >
> > > I've also fixed up some void * usage in the hv core, in patch 07, to
> > > make things simpler and not so "magic" when dealing with these pages.
> > > If you could review that one closely to ensure I didn't mess anything
> > > up, I would appreciate it.
> > >
> > > Also, are all of these files really needed for sysfs?  They seem to be
> > > all debugging stuff, shouldn't they go into debugfs if you really
> > > need/use them anymore?
> > >
> > > KY, could you test these out?  I don't have access to a hv system at the
> > > moment.  I'll wait for your ack before applying them to any of my trees.
> >
> > The patches look good and I tested them. The guest comes up and is functional.
> > I did notice though that the pending state appears to be a signed entity now
> which was not the
> > the case  before - I see a negative sign when I cat the client/server pending
> state.
> 
> Which exact file is that?  I didn't change the % modifiers for any of
> the data types, or at least I sure shouldn't have, if so, that's a bug
> on my side.
> 
> Thanks for testing, I'll queue these up, and if you can tell me which
> sysfs file is different, I'll verify the code conversion again, but I
> just reviewed it and can't seem to find anything.
> 
> thanks,
> 
> greg k-h
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