From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f177.google.com (mail-pd0-f177.google.com [209.85.192.177]) by kanga.kvack.org (Postfix) with ESMTP id 8931E6B0038 for ; Wed, 15 Apr 2015 17:32:48 -0400 (EDT) Received: by pdbqd1 with SMTP id qd1so66421378pdb.2 for ; Wed, 15 Apr 2015 14:32:48 -0700 (PDT) Received: from mga11.intel.com (mga11.intel.com. [192.55.52.93]) by mx.google.com with ESMTP id ps1si8800711pbb.236.2015.04.15.14.32.47 for ; Wed, 15 Apr 2015 14:32:47 -0700 (PDT) Message-ID: <552ED8FF.8000109@intel.com> Date: Wed, 15 Apr 2015 14:32:47 -0700 From: Dave Hansen MIME-Version: 1.0 Subject: Re: [PATCH 2/4] mm: Send a single IPI to TLB flush multiple pages when unmapping References: <1429094576-5877-1-git-send-email-mgorman@suse.de> <1429094576-5877-3-git-send-email-mgorman@suse.de> <552ED214.3050105@redhat.com> <20150415212855.GI14842@suse.de> In-Reply-To: <20150415212855.GI14842@suse.de> Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman , Hugh Dickins Cc: Rik van Riel , Linux-MM , Johannes Weiner , Andi Kleen , LKML On 04/15/2015 02:28 PM, Mel Gorman wrote: > This is what I'm expecting i.e. clean->dirty transition is write-through > to the PTE which is now unmapped and it traps. I'm assuming there is an > architectural guarantee that it happens but could not find an explicit > statement in the docs. I'm hoping Dave or Andi can check with the relevant > people on my behalf. The docs do look a bit ambiguous to me. I'm working on getting some clarified language in there. -- 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