From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1J3ENw-0000d8-MN for user-mode-linux-devel@lists.sourceforge.net; Fri, 14 Dec 2007 09:31:40 -0800 Received: from ruby.spiritone.com ([216.99.193.130]) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1J3ENv-0000Ja-Ce for user-mode-linux-devel@lists.sourceforge.net; Fri, 14 Dec 2007 09:31:40 -0800 Received: from [192.168.0.4] (216-99-213-225.dsl.aracnet.com [216.99.213.225]) (authenticated bits=0) by ruby.spiritone.com (8.13.6/8.13.4) with ESMTP id lBEHVJK6010490 for ; Fri, 14 Dec 2007 09:31:29 -0800 Message-ID: <4762BDEF.2040003@BitWagon.com> Date: Fri, 14 Dec 2007 09:31:27 -0800 From: John Reiser MIME-Version: 1.0 Subject: [uml-devel] Why does mem_init call map_cb twice? List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-bounces@lists.sourceforge.net Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net To: uml-devel In arch/um/kernel/mem.c, mem_init calls map_cb twice: once directly and once indirectly via initial_thread_cb. Why? ----- void mem_init(void) { /* clear the zero-page */ memset((void *) empty_zero_page, 0, PAGE_SIZE); /* Map in the area just after the brk now that kmalloc is about * to be turned on. */ brk_end = (unsigned long) UML_ROUND_UP(sbrk(0)); map_cb(NULL); initial_thread_cb(map_cb, NULL); ----- -- John Reiser, jreiser@BitWagon.com ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel