From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 26 Feb 2008 18:52:00 +0900 From: KOSAKI Motohiro Subject: Re: [ofa-general] Re: [patch 5/6] mmu_notifier: Support for drivers with revers maps (f.e. for XPmem) In-Reply-To: <20080226093809.GF26611@minantech.com> References: <200802261952.42567.nickpiggin@yahoo.com.au> <20080226093809.GF26611@minantech.com> Message-Id: <20080226184914.FF3A.KOSAKI.MOTOHIRO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Gleb Natapov Cc: kosaki.motohiro@jp.fujitsu.com, Nick Piggin , Robin Holt , steiner@sgi.com, Andrea Arcangeli , 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, general@lists.openfabrics.org, akpm@linux-foundation.org, Christoph Lameter List-ID: > > > > Can you change the spec? > > > > > > Not really. It will break all existing codes. > > > > I meant as in eg. submit changes to MPI-3 > > MPI spec tries to be backward compatible. And MPI-2 spec is 10 years > old, but MPI-1 is still in a wider use. HPC is moving fast in terms of HW > technology, but slow in terms of SW. Fortran is still hot there :) Agreed. many many people dislike incompatible specification change. We should accept real world spec. - kosaki -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org