[PATCH 25/38] genirq/affinity: Replace deprecated CPU-hotplug functions.

From: Sebastian Andrzej Siewior
Date: Tue Aug 03 2021 - 10:18:34 EST


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.

Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
kernel/irq/affinity.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c
index 4d89ad4fae3bb..f7ff8919dc9bb 100644
--- 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);
--
2.32.0