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cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: parisc 

Impact: cleanup, futureproof

In fact, all cpumask ops will only be valid (in general) for bit
numbers < nr_cpu_ids.  So use that instead of NR_CPUS in various
places.

This is always safe: no cpu number can be >= nr_cpu_ids, and
nr_cpu_ids is initialized to NR_CPUS at boot.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Rusty Russell 2009-03-16 14:19:37 +10:30
parent 91887a3629
commit bd071e1a37
2 changed files with 4 additions and 4 deletions
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4
arch/parisc/kernel/irq.c
View File

@ -311,12 +311,12 @@ unsigned long txn_alloc_addr(unsigned int virt_irq)
next_cpu++; /* assign to "next" CPU we want this bugger on */
/* validate entry */
while ((next_cpu < NR_CPUS) &&
while ((next_cpu < nr_cpu_ids) &&
(!per_cpu(cpu_data, next_cpu).txn_addr ||
!cpu_online(next_cpu)))
next_cpu++;
if (next_cpu >= NR_CPUS)
if (next_cpu >= nr_cpu_ids)
next_cpu = 0; /* nothing else, assign monarch */
return txn_affinity_addr(virt_irq, next_cpu);

4
arch/parisc/kernel/processor.c
View File

@ -100,8 +100,8 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
struct cpuinfo_parisc *p;
#ifdef CONFIG_SMP
if (num_online_cpus() >= NR_CPUS) {
printk(KERN_INFO "num_online_cpus() >= NR_CPUS\n");
if (num_online_cpus() >= nr_cpu_ids) {
printk(KERN_INFO "num_online_cpus() >= nr_cpu_ids\n");
return 1;
}
#else