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arm64: Use insert_resource() to simplify code

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insert_resource() traverses the subtree layer by layer from the root node
until a proper location is found. Compared with request_resource(), the
parent node does not need to be determined in advance.

In addition, move the insertion of node 'crashk_res' into function
reserve_crashkernel() to make the associated code close together.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: John Donnelly  <john.p.donnelly@oracle.com>
Acked-by: Baoquan He <bhe@redhat.com>
Link: https://lore.kernel.org/r/20220506114402.365-3-thunder.leizhen@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Zhen Lei
2022-05-06 19:43:58 +08:00
committed by Catalin Marinas
parent 2e5920bb07
commit e6b394425c
2 changed files with 4 additions and 14 deletions
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arch/arm64/mm/init.c
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@@ -137,6 +137,7 @@ static void __init reserve_crashkernel(void)
kmemleak_ignore_phys(crash_base);
crashk_res.start = crash_base;
crashk_res.end = crash_base + crash_size - 1;
insert_resource(&iomem_resource, &crashk_res);
}
/*