arm64/numa: remove some useless code (df7ffa34) · Commits · 戴 / test

When the deleted code is executed, only the bit of cpu0 was set on cpu_possible_mask. So that, only set_cpu_numa_node(0, NUMA_NO_NODE); will be executed. And map_cpu_to_node(0, 0) will soon be called. So these code can be safely removed. Signed-off-by:

Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by:

Will Deacon <will.deacon@arm.com>

arch/arm64/mm/numa.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -95,7 +95,6 @@ void numa_clear_node(unsigned int cpu)
		*/
		static void __init setup_node_to_cpumask_map(void)
		{
		unsigned int cpu;
		int node;

		/* setup nr_node_ids if not done yet */
		@@ -108,9 +107,6 @@ static void __init setup_node_to_cpumask_map(void)
		cpumask_clear(node_to_cpumask_map[node]);
		}

		for_each_possible_cpu(cpu)
		set_cpu_numa_node(cpu, NUMA_NO_NODE);

		/* cpumask_of_node() will now work */
		pr_debug("Node to cpumask map for %d nodes\n", nr_node_ids);
		}

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