From patchwork Tue Feb 9 19:32:35 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 78103 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o19JZnfQ022495 for ; Tue, 9 Feb 2010 19:35:50 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752469Ab0BITdw (ORCPT ); Tue, 9 Feb 2010 14:33:52 -0500 Received: from sca-es-mail-1.Sun.COM ([192.18.43.132]:40013 "EHLO sca-es-mail-1.sun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752202Ab0BITdq (ORCPT ); Tue, 9 Feb 2010 14:33:46 -0500 Received: from fe-sfbay-09.sun.com ([192.18.43.129]) by sca-es-mail-1.sun.com (8.13.7+Sun/8.12.9) with ESMTP id o19JXh33021177; Tue, 9 Feb 2010 11:33:45 -0800 (PST) MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: TEXT/PLAIN Received: from conversion-daemon.fe-sfbay-09.sun.com by fe-sfbay-09.sun.com (Sun Java(tm) System Messaging Server 7u2-7.04 64bit (built Jul 2 2009)) id <0KXL00B00A68SI00@fe-sfbay-09.sun.com>; Tue, 09 Feb 2010 11:33:42 -0800 (PST) Received: from localhost.localdomain ([unknown] [129.146.52.180]) by fe-sfbay-09.sun.com (Sun Java(tm) System Messaging Server 7u2-7.04 64bit (built Jul 2 2009)) with ESMTPSA id <0KXL00F2VABRK400@fe-sfbay-09.sun.com>; Tue, 09 Feb 2010 11:33:35 -0800 (PST) Date: Tue, 09 Feb 2010 11:32:35 -0800 From: Yinghai Lu Subject: [PATCH 24/35] move round_up/down to kernel.h In-reply-to: <1265743966-17065-1-git-send-email-yinghai@kernel.org> To: Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , Andrew Morton , Linus Torvalds Cc: Jesse Barnes , Christoph Lameter , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Yinghai Lu Message-id: <1265743966-17065-25-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.6.4.2 References: <1265743966-17065-1-git-send-email-yinghai@kernel.org> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Tue, 09 Feb 2010 19:35:50 +0000 (UTC) diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h index 4009f65..6f414ed 100644 --- a/arch/x86/include/asm/proto.h +++ b/arch/x86/include/asm/proto.h @@ -23,14 +23,4 @@ extern int reboot_force; long do_arch_prctl(struct task_struct *task, int code, unsigned long addr); -/* - * This looks more complex than it should be. But we need to - * get the type for the ~ right in round_down (it needs to be - * as wide as the result!), and we want to evaluate the macro - * arguments just once each. - */ -#define __round_mask(x,y) ((__typeof__(x))((y)-1)) -#define round_up(x,y) ((((x)-1) | __round_mask(x,y))+1) -#define round_down(x,y) ((x) & ~__round_mask(x,y)) - #endif /* _ASM_X86_PROTO_H */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 1221d23..8a6e583 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -44,6 +44,16 @@ extern const char linux_proc_banner[]; #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) +/* + * This looks more complex than it should be. But we need to + * get the type for the ~ right in round_down (it needs to be + * as wide as the result!), and we want to evaluate the macro + * arguments just once each. + */ +#define __round_mask(x,y) ((__typeof__(x))((y)-1)) +#define round_up(x,y) ((((x)-1) | __round_mask(x,y))+1) +#define round_down(x,y) ((x) & ~__round_mask(x,y)) + #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))