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Commit 73eb7d9e authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[PATCH] ARM SMP: Initialise cpu_present_map 



Rather than relying on the fixup code in init/main.c, explicitly
initialise cpu_present_map.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e11b2236

arch/arm/kernel/smp.c

+1 −0
Original line number Diff line number Diff line
@@ -236,6 +236,7 @@ void __init smp_prepare_boot_cpu(void) 
	unsigned int cpu = smp_processor_id();



	cpu_set(cpu, cpu_possible_map);

	cpu_set(cpu, cpu_present_map);

	cpu_set(cpu, cpu_online_map);

}

arch/arm/mach-integrator/platsmp.c

+4 −2
Original line number Diff line number Diff line
@@ -174,11 +174,13 @@ void __init smp_prepare_cpus(unsigned int max_cpus) 
		max_cpus = ncores;



	/*

	 * Initialise the present mask - this tells us which CPUs should

	 * be present.

	 * Initialise the possible/present maps.

	 * cpu_possible_map describes the set of CPUs which may be present

	 * cpu_present_map describes the set of CPUs populated

	 */

	for (i = 0; i < max_cpus; i++) {

		cpu_set(i, cpu_possible_map);

		cpu_set(i, cpu_present_map);

	}



	/*