Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934459AbXKPT0G (ORCPT ); Fri, 16 Nov 2007 14:26:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933155AbXKPTWn (ORCPT ); Fri, 16 Nov 2007 14:22:43 -0500 Received: from smtp2.linux-foundation.org ([207.189.120.14]:37066 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1764960AbXKPTWl (ORCPT ); Fri, 16 Nov 2007 14:22:41 -0500 Date: Fri, 16 Nov 2007 11:22:10 -0800 (PST) From: Linus Torvalds To: Jeremy Fitzhardinge cc: William Lee Irwin III , Andi Kleen , Ingo Molnar , Thomas Gleixner , Nick Piggin , "H. Peter Anvin" , Linux Kernel Mailing List Subject: Re: Why preallocate pmd in x86 32-bit PAE? In-Reply-To: <473DEC1C.8080506@goop.org> Message-ID: References: <473CC0AC.3020500@goop.org> <473DCF73.4070401@goop.org> <473DEC1C.8080506@goop.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 548 Lines: 17 On Fri, 16 Nov 2007, Jeremy Fitzhardinge wrote: > > If you happened to do a 1G munmap, it may end up freeing and > reallocating them, but that's going to be very rare. I don't think we ever free the pmd's now, do we? (Except for the *final* free, of course, when we release the whole VM). Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/