From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Thu, 16 Jul 2015 15:12:58 -0400 From: Benjamin LaHaise Subject: Re: [mmotm:master 140/321] fs/built-in.o:undefined reference to `filemap_page_mkwrite' Message-ID: <20150716191258.GA22760@kvack.org> References: <201507160919.VRGXvreQ%fengguang.wu@intel.com> <20150716190503.GA22146@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150716190503.GA22146@redhat.com> Sender: owner-linux-mm@kvack.org List-ID: To: Oleg Nesterov Cc: kbuild test robot , Jeff Moyer , kbuild-all@01.org, Johannes Weiner , Andrew Morton , Linux Memory Management List On Thu, Jul 16, 2015 at 09:05:03PM +0200, Oleg Nesterov wrote: > Thanks! ... > but the problem looks clear: CONFIG_MMU is not set, so we need > a dummy filemap_page_mkwrite() along with generic_file_mmap() and > generic_file_readonly_mmap(). > > I'll send the fix, but... > > Benjamin, Jeff, shouldn't AIO depend on MMU? Or it can actually work even > if CONFIG_MMU=n? It should work when CONFIG_MMU=n, but I doubt anyone regularly attempts to do so (if ever). -ben -- "Thought is the essence of where you are now." -- 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