genirq/affinity: Replace deprecated CPU-hotplug functions.

The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-26-bigeasy@linutronix.de

diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c
index 4d89ad4..f7ff891 100644 (file)
--- a/kernel/irq/affinity.c
+++ b/kernel/irq/affinity.c
@@ -355,7 +355,7 @@ static int irq_build_affinity_masks(unsigned int startvec, unsigned int numvecs,
                goto fail_npresmsk;
 
        /* Stabilize the cpumasks */
-       get_online_cpus();
+       cpus_read_lock();
        build_node_to_cpumask(node_to_cpumask);
 
        /* Spread on present CPUs starting from affd->pre_vectors */
@@ -384,7 +384,7 @@ static int irq_build_affinity_masks(unsigned int startvec, unsigned int numvecs,
                nr_others = ret;
 
  fail_build_affinity:
-       put_online_cpus();
+       cpus_read_unlock();
 
        if (ret >= 0)
                WARN_ON(nr_present + nr_others < numvecs);
@@ -505,9 +505,9 @@ unsigned int irq_calc_affinity_vectors(unsigned int minvec, unsigned int maxvec,
        if (affd->calc_sets) {
                set_vecs = maxvec - resv;
        } else {
-               get_online_cpus();
+               cpus_read_lock();
                set_vecs = cpumask_weight(cpu_possible_mask);
-               put_online_cpus();
+               cpus_read_unlock();
        }
 
        return resv + min(set_vecs, maxvec - resv);