linux-kernel - Re: Linux on Hyper-V 1) cd006086fa5d ata_piix: defer disks to the Hyper-V drivers by default 2) db63a4c8115a libata: add a host flag to ignore detected ATA device FW: use hv_storvsc instead of ata_piix to handle the IDE disks devices ( but not for the ...

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Date:	Fri, 1 Jun 2012 18:22:49 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	KY Srinivasan <kys@...rosoft.com>
Cc:	Victor Miasnikov <vvm@....by>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>,
	Jonathan Nieder <jrnieder@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Linux on Hyper-V 1) cd006086fa5d ata_piix: defer disks to the
 Hyper-V drivers by default 2) db63a4c8115a libata: add a host flag to ignore
 detected ATA device FW: use hv_storvsc instead of ata_piix to handle the IDE
 disks devices ( but not for the ...

On Fri, Jun 01, 2012 at 07:23:00PM +0000, KY Srinivasan wrote:
> 
> 
> > -----Original Message-----
> > From: Greg KH [mailto:gregkh@...uxfoundation.org]
> > Sent: Friday, June 01, 2012 12:26 PM
> > To: Victor Miasnikov
> > Cc: stable@...r.kernel.org; Jonathan Nieder; linux-kernel@...r.kernel.org; KY
> > Srinivasan
> > Subject: Re: Linux on Hyper-V 1) cd006086fa5d ata_piix: defer disks to the Hyper-
> > V drivers by default 2) db63a4c8115a libata: add a host flag to ignore detected
> > ATA device FW: use hv_storvsc instead of ata_piix to handle the IDE disks devices
> > ( but not for the ...
> > 
> > On Fri, Jun 01, 2012 at 07:17:33PM +0300, Victor Miasnikov wrote:
> > > Hi!
> > >
> > > >> cd006086fa5d ata_piix: defer disks to the Hyper-V drivers by default
> > > >>and its prerequisite
> > > >> db63a4c8115a libata: add a host flag to ignore detected ATA devices
> > >
> > > >Sorry, but I don't see how this meets the rules for the stable trees, do you?  If
> > so, please show me how.
> > >
> > > About "how"  -- ask K.Y. Srinivasan
> > >
> > > Hyper-V admins need _worked_ Linux v3.4.X / v3.3.X / v3.2.X
> > >
> > > Please, _fix_ errors related "use hv_storvsc instead of ata_piix to
> > > handle the IDE disks devices ( but not for the CD-ROM)"
> > 
> > Ok, I'll wait for KY to explain this.
> 
> Greg,
> 
> Clearly I cannot tell you anything about this that you don't know! Looking at the 
> rules for stable tree patches, this patch does not satisfy the requirement that
> the patch fix a bug since we are changing the behavior here of the ata driver to
> accommodate Hyper-V. I don't know how much flexibility you have here for
> taking patches that improve the general usability of Linux in different
> environments. All I can say is that It will be nice to have this patch in previous stable 
> releases.

Lots of things would be "nice", but as this doesn't meet the
stable_kernel_rules.txt rules, sorry, I can't take them.

greg k-h
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