linux-kernel - RE: [PATCH 02/10] Drivers: hv: utils: run polling callback always in interrupt context

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Date:	Tue, 13 Oct 2015 21:33:25 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Olaf Hering <olaf@...fle.de>
CC:	Vitaly Kuznetsov <vkuznets@...hat.com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"apw@...onical.com" <apw@...onical.com>,
	"jasowang@...hat.com" <jasowang@...hat.com>
Subject: RE: [PATCH 02/10] Drivers: hv: utils: run polling callback always in
 interrupt context



> -----Original Message-----
> From: Olaf Hering [mailto:olaf@...fle.de]
> Sent: Tuesday, October 13, 2015 2:47 AM
> To: KY Srinivasan <kys@...rosoft.com>
> Cc: Vitaly Kuznetsov <vkuznets@...hat.com>; gregkh@...uxfoundation.org;
> linux-kernel@...r.kernel.org; devel@...uxdriverproject.org;
> apw@...onical.com; jasowang@...hat.com
> Subject: Re: [PATCH 02/10] Drivers: hv: utils: run polling callback always in
> interrupt context
> 
> On Fri, Oct 09, Olaf Hering wrote:
> 
> > On Thu, Oct 08, KY Srinivasan wrote:
> >
> > > > yes, but after doing fcopy_respond_to_host(). I'd suggest we leave the
> > > > check in place, better safe than sorry.
> > >
> > > Agreed; Olaf, if it is ok with you, I can fix it up and send.
> >
> > I will retest with this part reverted. I think without two code paths
> > entering hv_fcopy_callback it should be ok to leave this check in.
> 
> Today I restored the "fcopy_transaction.state != HVUTIL_USERSPACE_REQ"
> check and its working fine.

Thanks Olaf. I will repost the patches with the update.

K. Y
> 
> Olaf