Commit 544a09ee authored by Srikar Dronamraju's avatar Srikar Dronamraju Committed by Michael Ellerman
Browse files

powerpc/numa: Print debug statements only when required 



Currently, a debug message gets printed every time an attempt to
add(remove) a CPU. However this is redundant if the CPU is already added
(removed) from the node.

Signed-off-by: default avatarSrikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210826100521.412639-4-srikar@linux.vnet.ibm.com
parent 506c2075

arch/powerpc/mm/numa.c

+4 −5
Original line number Diff line number Diff line
@@ -146,21 +146,20 @@ static void map_cpu_to_node(int cpu, int node) 
{

	update_numa_cpu_lookup_table(cpu, node);



	if (!(cpumask_test_cpu(cpu, node_to_cpumask_map[node]))) {

		pr_debug("adding cpu %d to node %d\n", cpu, node);



	if (!(cpumask_test_cpu(cpu, node_to_cpumask_map[node])))

		cpumask_set_cpu(cpu, node_to_cpumask_map[node]);

	}

}



#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PPC_SPLPAR)

static void unmap_cpu_from_node(unsigned long cpu)

{

	int node = numa_cpu_lookup_table[cpu];



	pr_debug("removing cpu %lu from node %d\n", cpu, node);



	if (cpumask_test_cpu(cpu, node_to_cpumask_map[node])) {

		cpumask_clear_cpu(cpu, node_to_cpumask_map[node]);

		pr_debug("removing cpu %lu from node %d\n", cpu, node);

	} else {

		pr_warn("Warning: cpu %lu not found in node %d\n", cpu, node);

	}