sched: add arch_update_cpu_topology hook.

Will be called each time the scheduling domains are rebuild. Needed for architectures that don't have a static cpu topology.

Heiko Carstens committed 18 years ago

Commit 22e52b01 parent 9aefd0a2 files · +7 −0Browse files

Unified · Split

2 files

@@ -50,6 +50,8 @@ · 49 unmodified lines
50	50	for_each_online_node(node) \
51	51	if (nr_cpus_node(node))
52	52
	53	+void arch_update_cpu_topology(void);
	54	+
53	55	/* Conform to ACPI 2.0 SLIT distance definitions */
54	56	#define LOCAL_DISTANCE 10
55	57	#define REMOTE_DISTANCE 20

@@ -6807,6 +6807,10 @@ static int ndoms_cur; /* number of sched domains in 'doms_cur' */ · 6806 unmodified lines
6807	6807	*/
6808	6808	static cpumask_t fallback_doms;
6809	6809
	6810	+void __attribute__((weak)) arch_update_cpu_topology(void)
	6811	+{
	6812	+}
	6813	+
6810	6814	/*
6811	6815	* Set up scheduler domains and groups. Callers must hold the hotplug lock.
6812	6816	* For now this just excludes isolated cpus, but could be used to
@@ -6816,6 +6820,7 @@ static int arch_init_sched_domains(const cpumask_t *cpu_map) · 3 unmodified lines
6816	6820	{
6817	6821	int err;
6818	6822
	6823	+ arch_update_cpu_topology();
6819	6824	ndoms_cur = 1;
6820	6825	doms_cur = kmalloc(sizeof(cpumask_t), GFP_KERNEL);
6821	6826	if (!doms_cur)