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cpumask: Use find_last_bit()

Browse source 
Impact: cleanup

There's one obvious place to use it: to find the highest possible cpu.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2009-01-01 10:12:19 +10:30
parent ab53d472e7
commit e0c0ba7365
1 changed files with 1 additions and 6 deletions
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7
init/main.c
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@ -380,12 +380,7 @@ EXPORT_SYMBOL(nr_cpu_ids);
/* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */
static void __init setup_nr_cpu_ids(void)
{
int cpu, highest_cpu = 0;
for_each_possible_cpu(cpu)
highest_cpu = cpu;
nr_cpu_ids = highest_cpu + 1;
nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
}
#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA