fix: cpu/hotplug: Remove deprecated CPU-hotplug functions. (v5.15)

[lttng-modules.git] / lttng-context-perf-counters.c

diff --git a/lttng-context-perf-counters.c b/lttng-context-perf-counters.c
index e12c73bbdc678c9e049ff4a989a56c5275b224c4..58fbbe6159a7e77be2d45d9ba8ed4173c2ff8543 100644 (file)
--- a/lttng-context-perf-counters.c
+++ b/lttng-context-perf-counters.c
@@ -15,6 +15,7 @@
 #include <linux/cpu.h>
 #include <lttng-events.h>
 #include <wrapper/ringbuffer/frontend_types.h>
+#include <wrapper/cpu.h>
 #include <wrapper/vmalloc.h>
 #include <wrapper/perf.h>
 #include <lttng-tracer.h>
@@ -95,10 +96,10 @@ void lttng_destroy_perf_counter_field(struct lttng_ctx_field *field)
        {
                int cpu;
 
-               get_online_cpus();
+               lttng_cpus_read_lock();
                for_each_online_cpu(cpu)
                        perf_event_release_kernel(events[cpu]);
-               put_online_cpus();
+               lttng_cpus_read_unlock();
 #ifdef CONFIG_HOTPLUG_CPU
                unregister_cpu_notifier(&field->u.perf_counter->nb);
 #endif
@@ -288,7 +289,7 @@ int lttng_add_perf_counter_to_ctx(uint32_t type,
                perf_field->nb.priority = 0;
                register_cpu_notifier(&perf_field->nb);
 #endif
-               get_online_cpus();
+               lttng_cpus_read_lock();
                for_each_online_cpu(cpu) {
                        events[cpu] = wrapper_perf_event_create_kernel_counter(attr,
                                                cpu, NULL, overflow_callback);
@@ -301,7 +302,7 @@ int lttng_add_perf_counter_to_ctx(uint32_t type,
                                goto counter_busy;
                        }
                }
-               put_online_cpus();
+               lttng_cpus_read_unlock();
                perf_field->hp_enable = 1;
        }
 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */
@@ -344,7 +345,7 @@ counter_error:
                        if (events[cpu] && !IS_ERR(events[cpu]))
                                perf_event_release_kernel(events[cpu]);
                }
-               put_online_cpus();
+               lttng_cpus_read_unlock();
 #ifdef CONFIG_HOTPLUG_CPU
                unregister_cpu_notifier(&perf_field->nb);
 #endif