linux-kernel - RE: [PATCH 5/5] X86: Hyper-V: Consolidate the allocation of the hypercall input page

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Message-ID: <MW2PR2101MB1113D86F6625FE95B5F25A67A08D0@MW2PR2101MB1113.namprd21.prod.outlook.com>
Date:   Fri, 27 Apr 2018 06:29:25 +0000
From:   KY Srinivasan <kys@...rosoft.com>
To:     Thomas Gleixner <tglx@...utronix.de>
CC:     "x86@...nel.org" <x86@...nel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
        "olaf@...fle.de" <olaf@...fle.de>,
        "apw@...onical.com" <apw@...onical.com>,
        "jasowang@...hat.com" <jasowang@...hat.com>,
        "hpa@...or.com" <hpa@...or.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "Michael Kelley (EOSG)" <Michael.H.Kelley@...rosoft.com>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>
Subject: RE: [PATCH 5/5] X86: Hyper-V: Consolidate the allocation of the
 hypercall input page



> -----Original Message-----
> From: Thomas Gleixner <tglx@...utronix.de>
> Sent: Thursday, April 26, 2018 3:24 PM
> To: KY Srinivasan <kys@...rosoft.com>
> Cc: x86@...nel.org; gregkh@...uxfoundation.org; linux-
> kernel@...r.kernel.org; devel@...uxdriverproject.org; olaf@...fle.de;
> apw@...onical.com; jasowang@...hat.com; hpa@...or.com; Stephen
> Hemminger <sthemmin@...rosoft.com>; Michael Kelley (EOSG)
> <Michael.H.Kelley@...rosoft.com>; vkuznets@...hat.com
> Subject: Re: [PATCH 5/5] X86: Hyper-V: Consolidate the allocation of the
> hypercall input page
> 
> On Wed, 25 Apr 2018, kys@...uxonhyperv.com wrote:
> 
> > From: "K. Y. Srinivasan" <kys@...rosoft.com>
> >
> > Consolidate the allocation of the hypercall input page.
> 
> Again. You can provide the new way of allocation first, then you don't have
> to add code first in order to remove it later again. 

I have implemented the new way upfront for the new code - the IPI code
[PATCH 2/5] X86: Hyper-V: Enable IPI enlightenments.
What I am doing here using that infrastructure for the TLB flush enlightenments
and getting rid of unnecessary code.

Regards,

K. Y