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Commit 2258a5bb authored by Rusty Russell's avatar Rusty Russell
Browse files

cpumask: alpha: Introduce cpumask_of_{node,pcibus} to replace {node,pcibus}_to_cpumask 



Impact: New APIs

The old node_to_cpumask/node_to_pcibus returned a cpumask_t: these
return a pointer to a struct cpumask.  Part of removing cpumasks from
the stack.

I'm not sure the existing code even compiles, but new version is
straightforward.

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
Cc: Richard Henderson <rth@twiddle.net>
parent b4a2f916

arch/alpha/include/asm/topology.h

+17 −0
Original line number Diff line number Diff line
@@ -39,7 +39,24 @@ static inline cpumask_t node_to_cpumask(int node) 
	return node_cpu_mask;

}



extern struct cpumask node_to_cpumask_map[];

/* FIXME: This is dumb, recalculating every time.  But simple. */

static const struct cpumask *cpumask_of_node(int node)

{

	int cpu;



	cpumask_clear(&node_to_cpumask_map[node]);



	for_each_online_cpu(cpu) {

		if (cpu_to_node(cpu) == node)

			cpumask_set_cpu(cpu, node_to_cpumask_map[node]);

	}



	return &node_to_cpumask_map[node];

}



#define pcibus_to_cpumask(bus)	(cpu_online_map)

#define cpumask_of_pcibus(bus)	(cpu_online_mask)



#endif /* !CONFIG_NUMA */

# include <asm-generic/topology.h>

arch/alpha/kernel/setup.c

+5 −0
Original line number Diff line number Diff line
@@ -79,6 +79,11 @@ int alpha_l3_cacheshape; 
unsigned long alpha_verbose_mcheck = CONFIG_VERBOSE_MCHECK_ON;

#endif



#ifdef CONFIG_NUMA

struct cpumask node_to_cpumask_map[MAX_NUMNODES] __read_mostly;

EXPORT_SYMBOL(node_to_cpumask_map);

#endif



/* Which processor we booted from.  */

int boot_cpuid;