From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rik van Riel Subject: Re: [PATCH -v3 0/6] rcu,nohz,kvm: use RCU extended quiescent state when running KVM guest Date: Mon, 09 Feb 2015 20:22:59 -0500 Message-ID: <54D95D73.3040805@redhat.com> References: <1423497884-21615-1-git-send-email-riel@redhat.com> <20150210011540.GA17955@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: "paulmck@linux.vnet.ibm.com" , "linux-kernel@vger.kernel.org" , Catalin Marinas , "fweisbec@gmail.com" , "kvm@vger.kernel.org" , "mtosatti@redhat.com" , "borntraeger@de.ibm.com" , "mingo@kernel.org" , "oleg@redhat.com" , "lcapitulino@redhat.com" , "pbonzini@redhat.com" To: Will Deacon Return-path: In-Reply-To: <20150210011540.GA17955@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 02/09/2015 08:15 PM, Will Deacon wrote: > Hi Rik, > > On Mon, Feb 09, 2015 at 04:04:38PM +0000, riel@redhat.com wrote: >> Apologies to Catalin and Will for not fixing up ARM. I am not >> familiar with ARM assembly, and not sure how to pass a constant >> argument to a function from assembly code on ARM :) > > It's a bit of a faff getting enum values into asm -- we actually > have to duplicate the definitions using #defines to get at the > constants. Perhaps it would be cleaner to leave > context_tracking_user_{enter,exit} intact as C wrappers around > context_tracking_{enter,exit} passing the appropriate constant? > That way we don't actually need to change the arch code at all. If Paul and Frederic have no objections, I would be happy to do that. Paul, Frederic? - -- All rights reversed -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJU2V1zAAoJEM553pKExN6D6g0IALbbBouimRFvTEvET5mspC7i DDn9AZJ8lMfbtgeMQsNFsJqfXu0lM8lwczPMKoAz/op31p0pdPlykYIm9fmCdqik rNFTIRRd8fPD3JJVjNu8lpmVsae9VQuaDX7/36OK5d36bIpPfZ1yj6dxOdL4p5oI xYcnw1Re1rUmtykQo3i6V6379EPz8azSqxFRcP+Kf9kq3FLzHwzs+TwkOprGSWE4 B4wNVQMn+bLir/vQlS0+0NYcYXDyMllGQWm0Z8mBhUhjvHhP0rQ0UplHQk+zDOaN slEOKAIEtfikAm9ugv25cylCJ6ko+DOrP1aZ994BQ7E9AxmBnzz0EN6i5NAIJ1s= =msX3 -----END PGP SIGNATURE-----