From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 22 May 2007 09:30:50 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [rfc] increase struct page size?! Message-Id: <20070522093050.0320d092.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: References: <20070518040854.GA15654@wotan.suse.de> <464FCA28.9040009@cosmosbay.com> <200705201456.26283.ak@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: ak@suse.de, dada1@cosmosbay.com, wli@holomorphy.com, npiggin@suse.de, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org List-ID: On Mon, 21 May 2007 10:08:06 -0700 (PDT) Christoph Lameter wrote: > On Sun, 20 May 2007, Andi Kleen wrote: > > > Besides with the scarcity of pageflags it might make sense to do "64 bit only" > > flags at some point. > > There is no scarcity of page flags. There is > > 1. Hoarding by Andrew > > 2. Waste by Sparsemem (section flags no longer necessary with > virtual memmap) For i386(32bit arch), there is not enough space for vmemmap. For 64bit arch, page flags are not exhausted yet. -Kame -- 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