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authorRusty Russell <rusty@rustcorp.com.au>2009-01-01 10:12:19 +1030
committerRusty Russell <rusty@rustcorp.com.au>2009-01-01 10:12:19 +1030
commite0c0ba736547e81c4f986ce192307c549d214167 (patch)
tree6e602e15ca491ddb14d68d9116a1503efb618ac6
parentab53d472e785e51fdfc08fc1d66252c1153e6c0f (diff)
downloadlinux-e0c0ba736547e81c4f986ce192307c549d214167.tar.bz2
cpumask: Use find_last_bit()
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>
-rw-r--r--init/main.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/init/main.c b/init/main.c
index 84d3732c0ce5..546ebd2f44ba 100644
--- a/init/main.c
+++ b/init/main.c
@@ -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