linux-kernel - [PATCH v14 02/11] x86: kdump: make the lower bound of crash kernel reservation consistent

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Message-ID: <20210130071025.65258-3-chenzhou10@huawei.com>
Date:   Sat, 30 Jan 2021 15:10:16 +0800
From:   Chen Zhou <chenzhou10@...wei.com>
To:     <mingo@...hat.com>, <tglx@...utronix.de>, <rppt@...nel.org>,
        <dyoung@...hat.com>, <bhe@...hat.com>, <catalin.marinas@....com>,
        <will@...nel.org>, <nsaenzjulienne@...e.de>, <corbet@....net>,
        <John.P.donnelly@...cle.com>, <bhsharma@...hat.com>,
        <prabhakar.pkin@...il.com>
CC:     <horms@...ge.net.au>, <robh+dt@...nel.org>, <arnd@...db.de>,
        <james.morse@....com>, <xiexiuqi@...wei.com>,
        <guohanjun@...wei.com>, <huawei.libin@...wei.com>,
        <wangkefeng.wang@...wei.com>, <chenzhou10@...wei.com>,
        <linux-doc@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <kexec@...ts.infradead.org>,
        John Donnelly <John.p.donnelly@...cle.com>
Subject: [PATCH v14 02/11] x86: kdump: make the lower bound of crash kernel reservation consistent

The lower bounds of crash kernel reservation and crash kernel low
reservation are different, use the consistent value CRASH_ALIGN.

Suggested-by: Dave Young <dyoung@...hat.com>
Signed-off-by: Chen Zhou <chenzhou10@...wei.com>
Tested-by: John Donnelly <John.p.donnelly@...cle.com>
---
 arch/x86/kernel/setup.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index da769845597d..27470479e4a3 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -439,7 +439,8 @@ static int __init reserve_crashkernel_low(void)
 			return 0;
 	}
 
-	low_base = memblock_phys_alloc_range(low_size, CRASH_ALIGN, 0, CRASH_ADDR_LOW_MAX);
+	low_base = memblock_phys_alloc_range(low_size, CRASH_ALIGN, CRASH_ALIGN,
+			CRASH_ADDR_LOW_MAX);
 	if (!low_base) {
 		pr_err("Cannot reserve %ldMB crashkernel low memory, please try smaller size.\n",
 		       (unsigned long)(low_size >> 20));
-- 
2.20.1