From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail6.bemta8.messagelabs.com (mail6.bemta8.messagelabs.com [216.82.243.55]) by kanga.kvack.org (Postfix) with ESMTP id AEC8B6B016A for ; Thu, 1 Sep 2011 16:37:54 -0400 (EDT) Message-ID: <4E5FED1A.1000300@goop.org> Date: Thu, 01 Sep 2011 13:37:46 -0700 From: Jeremy Fitzhardinge MIME-Version: 1.0 Subject: Re: [Revert] Re: [PATCH] mm: sync vmalloc address space page tables in alloc_vm_area() References: <1314877863-21977-1-git-send-email-david.vrabel@citrix.com> <20110901161134.GA8979@dumpdata.com> In-Reply-To: <20110901161134.GA8979@dumpdata.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Konrad Rzeszutek Wilk Cc: David Vrabel , "linux-kernel@vger.kernel.org" , "akpm@linux-foundation.org" , "namhyung@gmail.com" , "rientjes@google.com" , "linux-mm@kvack.org" , "xen-devel@lists.xensource.com" , "paulmck@linux.vnet.ibm.com" On 09/01/2011 09:11 AM, Konrad Rzeszutek Wilk wrote: > On Thu, Sep 01, 2011 at 12:51:03PM +0100, David Vrabel wrote: >> From: David Vrabel > Andrew, > > I was wondering if you would be Ok with this patch for 3.1. > > It is a revert (I can prepare a proper revert if you would like > that instead of this patch). > > The users of this particular function (alloc_vm_area) are just > Xen. There are no others. I'd prefer to put explicit vmalloc_sync_all()s in the callsites where necessary, and ultimately try to work out ways of avoiding it altogether (like have some hypercall wrapper which touches the arg memory to make sure its mapped?). J -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org