[PATCH 00/13] hv: clean up dev_attr usage

KY Srinivasan kys at microsoft.com
Tue Sep 17 18:42:30 UTC 2013



> -----Original Message-----
> From: Greg Kroah-Hartman [mailto:gregkh at linuxfoundation.org]
> Sent: Friday, September 13, 2013 11:33 AM
> To: KY Srinivasan; Haiyang Zhang
> Cc: devel at linuxdriverproject.org; linux-kernel at vger.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.

Regards,

K. Y 
> 
> thanks,
> 
> greg k-h



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