Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932072AbWEJUFW (ORCPT ); Wed, 10 May 2006 16:05:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751512AbWEJUFW (ORCPT ); Wed, 10 May 2006 16:05:22 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:56274 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S1751511AbWEJUFV (ORCPT ); Wed, 10 May 2006 16:05:21 -0400 Date: Wed, 10 May 2006 21:05:16 +0100 From: Christoph Hellwig To: Adam Litke Cc: linux-mm@kvack.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC] Hugetlb demotion for x86 Message-ID: <20060510200516.GA30346@infradead.org> Mail-Followup-To: Christoph Hellwig , Adam Litke , linux-mm@kvack.kernel.org, linux-kernel@vger.kernel.org References: <1147287400.24029.81.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1147287400.24029.81.camel@localhost.localdomain> User-Agent: Mutt/1.4.2.1i X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 647 Lines: 14 On Wed, May 10, 2006 at 01:56:40PM -0500, Adam Litke wrote: > The following patch enables demotion of MAP_PRIVATE hugetlb memory to > normal anonymous memory on the i386 architecture. This is an awfully bad idea. Applications should do smart fallback instead. For the same reason we for example fail O_DIRECT requests we can fullfill instead of doing the half buffered I/O braindamage solaris does. - 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/