From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 23 Apr 2008 20:16:51 +0200 From: Andrea Arcangeli Subject: Re: [PATCH 04 of 12] Moves all mmu notifier methods outside the PT lock (first and not last Message-ID: <20080423181651.GH24536@duo.random> References: <20080422224048.GR24536@duo.random> <20080423134427.GW24536@duo.random> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Nick Piggin , Jack Steiner , Peter Zijlstra , kvm-devel@lists.sourceforge.net, Kanoj Sarcar , Roland Dreier , Steve Wise , linux-kernel@vger.kernel.org, Avi Kivity , linux-mm@kvack.org, Robin Holt , general@lists.openfabrics.org, Hugh Dickins , akpm@linux-foundation.org, Rusty Russell List-ID: On Wed, Apr 23, 2008 at 11:02:18AM -0700, Christoph Lameter wrote: > We have had this workaround effort done years ago and have been > suffering the ill effects of pinning for years. Had to deal with Yes. In addition to the pinning, there's lot of additional tlb flushing work to do in kvm without mmu notifiers as the swapcache could be freed by the vm the instruction after put_page unpins the page for whatever reason. -- 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