linux-kernel - RE: [PATCH 37/46] Staging: hv: vmbus: Check for events before messages

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Message-ID: <6E21E5352C11B742B20C142EB499E048081B52F7@TK5EX14MBXC126.redmond.corp.microsoft.com>
Date:	Tue, 30 Aug 2011 17:06:39 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Greg KH <greg@...ah.com>
CC:	"gregkh@...e.de" <gregkh@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"virtualization@...ts.osdl.org" <virtualization@...ts.osdl.org>,
	Haiyang Zhang <haiyangz@...rosoft.com>
Subject: RE: [PATCH 37/46] Staging: hv: vmbus: Check for events before
 messages



> -----Original Message-----
> From: Greg KH [mailto:greg@...ah.com]
> Sent: Monday, August 29, 2011 2:05 PM
> To: KY Srinivasan
> Cc: gregkh@...e.de; linux-kernel@...r.kernel.org;
> devel@...uxdriverproject.org; virtualization@...ts.osdl.org; Haiyang Zhang
> Subject: Re: [PATCH 37/46] Staging: hv: vmbus: Check for events before
> messages
> 
> On Sat, Aug 27, 2011 at 11:31:36AM -0700, K. Y. Srinivasan wrote:
> > Conform to Windows specification by checking for events before messages.
> 
> What specification?
> 
> Care to provide a comment in the code that you are doing this in this
> explicit order because of some rule that the hypervisor imposes on us?

I am not sure if this is documented anywhere (publicly). In talking to Windows 
guys, they suggested this is the order in which it is done on Windows guests and suggested
I should do the same. I will see if there is some public documentation that specifies this.

Regards,

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

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