From f7256dc0cdbc68903502997bde619f555a910f50 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 11 Nov 2015 16:46:33 -0800 Subject: [PATCH] libnvdimm, e820: fix numa node for e820-type-12 pmem ranges Rather than punt on the numa node for these e820 ranges try to find a better answer with memory_add_physaddr_to_nid() when it is available. Cc: Reported-by: Boaz Harrosh Tested-by: Boaz Harrosh Signed-off-by: Dan Williams --- drivers/nvdimm/e820.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/nvdimm/e820.c b/drivers/nvdimm/e820.c index 8282db2ef99e..b0045a505dc8 100644 --- a/drivers/nvdimm/e820.c +++ b/drivers/nvdimm/e820.c @@ -3,6 +3,7 @@ * Copyright (c) 2015, Intel Corporation. */ #include +#include #include #include @@ -25,6 +26,18 @@ static int e820_pmem_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_MEMORY_HOTPLUG +static int e820_range_to_nid(resource_size_t addr) +{ + return memory_add_physaddr_to_nid(addr); +} +#else +static int e820_range_to_nid(resource_size_t addr) +{ + return NUMA_NO_NODE; +} +#endif + static int e820_pmem_probe(struct platform_device *pdev) { static struct nvdimm_bus_descriptor nd_desc; @@ -48,7 +61,7 @@ static int e820_pmem_probe(struct platform_device *pdev) memset(&ndr_desc, 0, sizeof(ndr_desc)); ndr_desc.res = p; ndr_desc.attr_groups = e820_pmem_region_attribute_groups; - ndr_desc.numa_node = NUMA_NO_NODE; + ndr_desc.numa_node = e820_range_to_nid(p->start); set_bit(ND_REGION_PAGEMAP, &ndr_desc.flags); if (!nvdimm_pmem_region_create(nvdimm_bus, &ndr_desc)) goto err; -- 2.30.2