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

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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: Rusty Russell <rusty@rustcorp.com.au>
Cc: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Rusty Russell 2008-12-26 22:23:41 +10:30
parent b4a2f916a8
commit 2258a5bb10
2 changed files with 22 additions and 0 deletions
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17
arch/alpha/include/asm/topology.h
View File

@ -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>

5
arch/alpha/kernel/setup.c
View File

@ -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;