From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrea Arcangeli Subject: [ofa-general] Re: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges Date: Thu, 28 Feb 2008 01:52:50 +0100 Message-ID: <20080228005249.GF8091@v2.random> References: <20080215064859.384203497@sgi.com> <20080215064932.620773824@sgi.com> <200802201008.49933.nickpiggin@yahoo.com.au> <20080228001104.GB8091@v2.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Nick Piggin , steiner@sgi.com, Peter Zijlstra , linux-mm@kvack.org, Izik Eidus , Kanoj Sarcar , Roland Dreier , linux-kernel@vger.kernel.org, Avi Kivity , kvm-devel@lists.sourceforge.net, daniel.blueman@quadrics.com, Robin Holt , general@lists.openfabrics.org, akpm@linux-foundation.org To: Christoph Lameter Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: general-bounces@lists.openfabrics.org Errors-To: general-bounces@lists.openfabrics.org List-Id: kvm.vger.kernel.org On Wed, Feb 27, 2008 at 04:14:08PM -0800, Christoph Lameter wrote: > Erm. This would also be needed by RDMA etc. The only RDMA I know is Quadrics, and Quadrics apparently doesn't need to schedule inside the invalidate methods AFIK, so I doubt the above is true. It'd be interesting to know if IB is like Quadrics and it also doesn't require blocking to invalidate certain remote mappings.