Messages in this thread Patch in this message | | | Date | Sat, 12 Oct 2013 14:07:20 +0800 | From | Zhang Yanfei <> | Subject | [PATCH part2 v2 5/8] acpi, numa, mem_hotplug: Mark hotpluggable memory in memblock |
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From: Tang Chen <tangchen@cn.fujitsu.com>
When parsing SRAT, we know that which memory area is hotpluggable. So we invoke function memblock_mark_hotplug() introduced by previous patch to mark hotpluggable memory in memblock.
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> --- arch/x86/mm/numa.c | 2 ++ arch/x86/mm/srat.c | 5 +++++ 2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index ab69e1d..408c02d 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -569,6 +569,8 @@ static int __init numa_init(int (*init_func)(void)) memset(&numa_meminfo, 0, sizeof(numa_meminfo)); WARN_ON(memblock_set_node(0, ULLONG_MAX, &memblock.memory, MAX_NUMNODES)); + /* In case that parsing SRAT failed. */ + WARN_ON(memblock_clear_hotplug(0, ULLONG_MAX)); numa_reset_distance(); ret = init_func(); diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c index 266ca91..ca7c484 100644 --- a/arch/x86/mm/srat.c +++ b/arch/x86/mm/srat.c @@ -181,6 +181,11 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) (unsigned long long) start, (unsigned long long) end - 1, hotpluggable ? " hotplug" : ""); + /* Mark hotplug range in memblock. */ + if (hotpluggable && memblock_mark_hotplug(start, ma->length)) + pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n", + (unsigned long long) start, (unsigned long long) end - 1); + return 0; out_err_bad_srat: bad_srat(); -- 1.7.1
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