From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with ESMTP id 939146B0047 for ; Sun, 17 Jan 2010 06:08:55 -0500 (EST) Date: Sun, 17 Jan 2010 06:08:47 -0500 From: Christoph Hellwig Subject: Re: [PATCH] register MADV_HUGEPAGE Message-ID: <20100117110847.GA32212@infradead.org> References: <20100116184642.GA5687@random.random> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100116184642.GA5687@random.random> Sender: owner-linux-mm@kvack.org To: Andrea Arcangeli Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, davem@davemloft.net List-ID: On Sat, Jan 16, 2010 at 07:46:42PM +0100, Andrea Arcangeli wrote: > From: Andrea Arcangeli > > In order to allow early shipping transparent hugepage feature enabled > only inside MADV_HUGEPAGE and not globally to diminish the risk of > unexpected performance regressions on non-hypervisor related usages > I'd need this little define registered. This is also to avoid things > like this: NACK, usespace ABIs only go in when features are added. There's a more than large enough chance that it will change for one reason or another. And while transparent hugepages are a good feature to add, it's still in a far to early stage to go on with it. -- 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