From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with SMTP id 4085F6B00A2 for ; Tue, 26 Jan 2010 12:11:49 -0500 (EST) Message-ID: <4B5F2242.3010309@redhat.com> Date: Tue, 26 Jan 2010 12:11:30 -0500 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [PATCH 13 of 31] add pmd mangling functions to x86 References: <3bd66d70a20aa0f0f48a.1264513928@v2.random> In-Reply-To: <3bd66d70a20aa0f0f48a.1264513928@v2.random> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Andrea Arcangeli Cc: linux-mm@kvack.org, Marcelo Tosatti , Adam Litke , Avi Kivity , Izik Eidus , Hugh Dickins , Nick Piggin , Mel Gorman , Andi Kleen , Dave Hansen , Benjamin Herrenschmidt , Ingo Molnar , Mike Travis , KAMEZAWA Hiroyuki , Christoph Lameter , Chris Wright , Andrew Morton , bpicco@redhat.com, Christoph Hellwig , KOSAKI Motohiro List-ID: On 01/26/2010 08:52 AM, Andrea Arcangeli wrote: > From: Andrea Arcangeli > > Add needed pmd mangling functions with simmetry with their pte counterparts. > pmdp_freeze_flush is the only exception only present on the pmd side and it's > needed to serialize the VM against split_huge_page, it simply atomically clears > the present bit in the same way pmdp_clear_flush_young atomically clears the > accessed bit (and both need to flush the tlb to make it effective, which is > mandatory to happen synchronously for pmdp_freeze_flush). > > Signed-off-by: Andrea Arcangeli Acked-by: Rik van Riel -- All rights reversed. -- 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