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[v16,02/11] x86: kdump: make the lower bound of crash kernel reservation consistent

Message ID 20211123124646.1995-3-thunder.leizhen@huawei.com (mailing list archive)
State New, archived
Headers show
Series support reserving crashkernel above 4G on arm64 kdump | expand

Commit Message

Leizhen (ThunderTown) Nov. 23, 2021, 12:46 p.m. UTC 
From: Chen Zhou <chenzhou10@huawei.com>

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@redhat.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Tested-by: John Donnelly <John.p.donnelly@oracle.com>
---
 arch/x86/kernel/setup.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index b7286d4c389dd33..a31352d8c404f6c 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -441,7 +441,8 @@  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));