From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757213Ab1LNNem (ORCPT ); Wed, 14 Dec 2011 08:34:42 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:43932 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753859Ab1LNNel (ORCPT ); Wed, 14 Dec 2011 08:34:41 -0500 X-Authority-Analysis: v=2.0 cv=FIuZNpUs c=1 sm=0 a=ZycB6UtQUfgMyuk2+PxD7w==:17 a=ewjKGVC-4pQA:10 a=5SG0PmZfjMsA:10 a=Q9fys5e9bTEA:10 a=meVymXHHAAAA:8 a=BZMhDRmfmsuKveKUUEsA:9 a=ECpTwJHErp6HUt4qVnIA:7 a=PUjeQqilurYA:10 a=jeBq3FmKZ4MA:10 a=ZycB6UtQUfgMyuk2+PxD7w==:117 X-Cloudmark-Score: 0 X-Originating-IP: 74.67.80.29 Message-ID: <1323869678.23971.19.camel@gandalf.stny.rr.com> Subject: md: Fix userspace free_pages() macro From: Steven Rostedt To: LKML Cc: NeilBrown , Dan Williams , "H. Peter Anvin" Date: Wed, 14 Dec 2011 08:34:38 -0500 Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.0.3-3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org While using etags to find free_pages(), I stumbled across this debug definition of free_pages() that is to be used while debugging some raid code in userspace. The __get_free_pages() allocates the correct size, but the free_pages() does not match. free_pages(), like __get_free_pages(), takes an order and not a size. Signed-off-by: Steven Rostedt diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h index 2b59cc8..53272e9 100644 --- a/include/linux/raid/pq.h +++ b/include/linux/raid/pq.h @@ -132,7 +132,7 @@ void raid6_dual_recov(int disks, size_t bytes, int faila, int failb, PROT_READ|PROT_WRITE, \ MAP_PRIVATE|MAP_ANONYMOUS,\ 0, 0)) -# define free_pages(x, y) munmap((void *)(x), (y)*PAGE_SIZE) +# define free_pages(x, y) munmap((void *)(x), PAGE_SIZE << (y)) static inline void cpu_relax(void) {