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cpumask: use cpu_online in kernel/perf_event.c

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Also, we want to check against nr_cpu_ids, not num_possible_cpus().
The latter works, but the correct bounds check is < nr_cpu_ids.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
To: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Rusty Russell 2009-12-17 11:43:08 -06:00
parent bea4c899f2
commit f6325e30eb
1 changed files with 1 additions and 1 deletions
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2
kernel/perf_event.c
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@ -1614,7 +1614,7 @@ static struct perf_event_context *find_get_context(pid_t pid, int cpu)
* offline CPU and activate it when the CPU comes up, but * offline CPU and activate it when the CPU comes up, but
* that's for later. * that's for later.
*/ */
if (!cpu_isset(cpu, cpu_online_map)) if (!cpu_online(cpu))
return ERR_PTR(-ENODEV); return ERR_PTR(-ENODEV);
cpuctx = &per_cpu(perf_cpu_context, cpu); cpuctx = &per_cpu(perf_cpu_context, cpu);