From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262376AbVCVEUZ (ORCPT ); Mon, 21 Mar 2005 23:20:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262319AbVCVERl (ORCPT ); Mon, 21 Mar 2005 23:17:41 -0500 Received: from smtp201.mail.sc5.yahoo.com ([216.136.129.91]:43648 "HELO smtp201.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S262351AbVCVEO7 (ORCPT ); Mon, 21 Mar 2005 23:14:59 -0500 Subject: Re: [PATCH 1/5] freepgt: free_pgtables use vma list From: Nick Piggin To: "David S. Miller" Cc: "Luck, Tony" , hugh@veritas.com, Andrew Morton , benh@kernel.crashing.org, lkml In-Reply-To: <20050321150205.4af39064.davem@davemloft.net> References: <20050321150205.4af39064.davem@davemloft.net> Content-Type: text/plain Date: Tue, 22 Mar 2005 15:14:54 +1100 Message-Id: <1111464894.5125.34.camel@npiggin-nld.site> Mime-Version: 1.0 X-Mailer: Evolution 2.0.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2005-03-21 at 15:02 -0800, David S. Miller wrote: > Anyways, there's the full analysis, what do you make > of this Hugh? :-) Impressive, and my name isn't even Hugh. Question, Dave: flush_tlb_pgtables after Hugh's patch is also possibly not being called with enough range to cover all page tables that have been freed. For example, you may have a single page (start,end) address range to free, but if this is enclosed by a large enough (floor,ceiling) then it may free an entire pgd entry. I assume the intention of the API would be to provide the full pgd width in that case?