| From | Jiang Liu <> | Subject | [RFC Patch V1 22/30] mm, of: Use cpu_to_mem()/numa_mem_id() to support memoryless node | Date | Fri, 11 Jul 2014 15:37:39 +0800 |
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When CONFIG_HAVE_MEMORYLESS_NODES is enabled, cpu_to_node()/numa_node_id() may return a node without memory, and later cause system failure/panic when calling kmalloc_node() and friends with returned node id. So use cpu_to_mem()/numa_mem_id() instead to get the nearest node with memory for the/current cpu.
If CONFIG_HAVE_MEMORYLESS_NODES is disabled, cpu_to_mem()/numa_mem_id() is the same as cpu_to_node()/numa_node_id().
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> --- drivers/of/base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/of/base.c b/drivers/of/base.c index b9864806e9b8..40d4772973ad 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -85,7 +85,7 @@ EXPORT_SYMBOL(of_n_size_cells); #ifdef CONFIG_NUMA int __weak of_node_to_nid(struct device_node *np) { - return numa_node_id(); + return numa_mem_id(); } #endif -- 1.7.10.4
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