[PATCH 2/2] Use num_possible_cpus() instead of direct use of NR_CPUS.

From: Ameen
Date: Sun Jan 10 2016 - 10:13:38 EST


WARNING: usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus()..

Signed-off-by : Ameen Ali <Ameenali023@xxxxxxxxx>
---
kernel/smp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/smp.c b/kernel/smp.c
index d903c02..94033ac 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -549,13 +549,13 @@ static int __init maxcpus(char *str)
early_param("maxcpus", maxcpus);

/* Setup number of possible processor ids */
-int nr_cpu_ids __read_mostly = NR_CPUS;
+int nr_cpu_ids __read_mostly = num_possible_cpus();
EXPORT_SYMBOL(nr_cpu_ids);

/* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */
void __init setup_nr_cpu_ids(void)
{
- nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
+ nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),num_possible_cpus()) + 1;
}

void __weak smp_announce(void)
--
2.5.0