From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5E32DC433DB for ; Sat, 30 Jan 2021 09:13:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3C43E64E02 for ; Sat, 30 Jan 2021 09:13:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231879AbhA3JNM (ORCPT ); Sat, 30 Jan 2021 04:13:12 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:11949 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231903AbhA3JNA (ORCPT ); Sat, 30 Jan 2021 04:13:00 -0500 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4DSQFc45TJzjF7n; Sat, 30 Jan 2021 15:05:08 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.498.0; Sat, 30 Jan 2021 15:06:01 +0800 From: Chen Zhou To: , , , , , , , , , , , CC: , , , , , , , , , , , , , John Donnelly Subject: [PATCH v14 01/11] x86: kdump: replace the hard-coded alignment with macro CRASH_ALIGN Date: Sat, 30 Jan 2021 15:10:15 +0800 Message-ID: <20210130071025.65258-2-chenzhou10@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210130071025.65258-1-chenzhou10@huawei.com> References: <20210130071025.65258-1-chenzhou10@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org Move CRASH_ALIGN to header asm/kexec.h for later use. Besides, the alignment of crash kernel regions in x86 is 16M(CRASH_ALIGN), but function reserve_crashkernel() also used 1M alignment. So just replace hard-coded alignment 1M with macro CRASH_ALIGN. Suggested-by: Dave Young Suggested-by: Baoquan He Signed-off-by: Chen Zhou Tested-by: John Donnelly --- arch/x86/include/asm/kexec.h | 3 +++ arch/x86/kernel/setup.c | 5 +---- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h index 6802c59e8252..be18dc7ae51f 100644 --- a/arch/x86/include/asm/kexec.h +++ b/arch/x86/include/asm/kexec.h @@ -18,6 +18,9 @@ # define KEXEC_CONTROL_CODE_MAX_SIZE 2048 +/* 16M alignment for crash kernel regions */ +#define CRASH_ALIGN SZ_16M + #ifndef __ASSEMBLY__ #include diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 3412c4595efd..da769845597d 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -390,9 +390,6 @@ static void __init memblock_x86_reserve_range_setup_data(void) #ifdef CONFIG_KEXEC_CORE -/* 16M alignment for crash kernel regions */ -#define CRASH_ALIGN SZ_16M - /* * Keep the crash kernel below this limit. * @@ -510,7 +507,7 @@ static void __init reserve_crashkernel(void) } else { unsigned long long start; - start = memblock_phys_alloc_range(crash_size, SZ_1M, crash_base, + start = memblock_phys_alloc_range(crash_size, CRASH_ALIGN, crash_base, crash_base + crash_size); if (start != crash_base) { pr_info("crashkernel reservation failed - memory is in use.\n"); -- 2.20.1