From patchwork Thu Feb 13 16:16:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vincenzo Frascino X-Patchwork-Id: 11380741 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D9AEF92A for ; Thu, 13 Feb 2020 16:17:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C2CC5222C2 for ; Thu, 13 Feb 2020 16:17:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729270AbgBMQRG (ORCPT ); Thu, 13 Feb 2020 11:17:06 -0500 Received: from foss.arm.com ([217.140.110.172]:49922 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728514AbgBMQRF (ORCPT ); Thu, 13 Feb 2020 11:17:05 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DE8CC106F; Thu, 13 Feb 2020 08:17:04 -0800 (PST) Received: from e119884-lin.cambridge.arm.com (e119884-lin.cambridge.arm.com [10.1.196.72]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5D74E3F6CF; Thu, 13 Feb 2020 08:17:02 -0800 (PST) From: Vincenzo Frascino To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, clang-built-linux@googlegroups.com, x86@kernel.org Cc: catalin.marinas@arm.com, will.deacon@arm.com, arnd@arndb.de, linux@armlinux.org.uk, paul.burton@mips.com, tglx@linutronix.de, luto@kernel.org, mingo@redhat.com, bp@alien8.de, sboyd@kernel.org, salyzyn@android.com, pcc@google.com, 0x7f454c46@gmail.com, ndesaulniers@google.com, avagin@openvz.org Subject: [PATCH 08/19] linux/jiffies.h: Extract common header for vDSO Date: Thu, 13 Feb 2020 16:16:03 +0000 Message-Id: <20200213161614.23246-9-vincenzo.frascino@arm.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200213161614.23246-1-vincenzo.frascino@arm.com> References: <20200213161614.23246-1-vincenzo.frascino@arm.com> MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The vDSO library should only include the necessary headers required for a userspace library (UAPI and a minimal set of kernel headers). To make this possible it is necessary to isolate from the kernel headers the common parts that are strictly necessary to build the library. Split jiffies.h into linux and common headers to make the latter suitable for inclusion in the vDSO library. Signed-off-by: Vincenzo Frascino --- include/common/jiffies.h | 11 +++++++++++ include/linux/jiffies.h | 4 +--- 2 files changed, 12 insertions(+), 3 deletions(-) create mode 100644 include/common/jiffies.h diff --git a/include/common/jiffies.h b/include/common/jiffies.h new file mode 100644 index 000000000000..ff0207f00550 --- /dev/null +++ b/include/common/jiffies.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __COMMON_JIFFIES_H +#define __COMMON_JIFFIES_H + +#include /* for HZ */ +#include + +/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */ +#define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ) + +#endif /* __COMMON_JIFFIES_H */ diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index e3279ef24d28..710539d1e39b 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -8,6 +8,7 @@ #include #include #include +#include #include /* for HZ */ #include @@ -59,9 +60,6 @@ extern int register_refined_jiffies(long clock_tick_rate); -/* TICK_NSEC is the time between ticks in nsec assuming SHIFTED_HZ */ -#define TICK_NSEC ((NSEC_PER_SEC+HZ/2)/HZ) - /* TICK_USEC is the time between ticks in usec assuming SHIFTED_HZ */ #define TICK_USEC ((USEC_PER_SEC + HZ/2) / HZ)