From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail6.bemta12.messagelabs.com (mail6.bemta12.messagelabs.com [216.82.250.247]) by kanga.kvack.org (Postfix) with ESMTP id ECFC16B0047 for ; Thu, 1 Dec 2011 17:28:15 -0500 (EST) Date: Thu, 1 Dec 2011 17:28:03 -0500 From: Christoph Hellwig Subject: Re: [PATCH 01/11] mm: export vmalloc_sync_all symbol to GPL modules Message-ID: <20111201222803.GA10853@infradead.org> References: <1322775683-8741-1-git-send-email-mathieu.desnoyers@efficios.com> <1322775683-8741-2-git-send-email-mathieu.desnoyers@efficios.com> <20111201215700.GA16782@infradead.org> <20111201221337.GB3365@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20111201221337.GB3365@kroah.com> Sender: owner-linux-mm@kvack.org List-ID: To: Greg KH Cc: Christoph Hellwig , Mathieu Desnoyers , devel@driverdev.osuosl.org, lttng-dev@lists.lttng.org, Linus Torvalds , Christoph Lameter , Tejun Heo , David Howells , David McCullough , D Jeff Dionne , Greg Ungerer , Paul Mundt , linux-mm@kvack.org, linux-kernel@vger.kernel.org On Thu, Dec 01, 2011 at 02:13:37PM -0800, Greg KH wrote: > On Thu, Dec 01, 2011 at 04:57:00PM -0500, Christoph Hellwig wrote: > > On Thu, Dec 01, 2011 at 04:41:13PM -0500, Mathieu Desnoyers wrote: > > > LTTng needs this symbol exported. It calls it to ensure its tracing > > > buffers and allocated data structures never trigger a page fault. This > > > is required to handle page fault handler tracing and NMI tracing > > > gracefully. > > > > We: > > > > a) don't export symbols unless they have an intree-user > > lttng is now in-tree in the drivers/staging/ area. See linux-next for > details if you are curious. Eww - merging stuff without discussion on lkml is more than evil. Either way, it was guaranteed that drivers/staging is considered out of tree for core code. I'm defintively dead set against exporting anything for staging and opening that slippery slope. -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org