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

[lttng-modules.git] / src / lib / ringbuffer / ring_buffer_backend.c

diff --git a/src/lib/ringbuffer/ring_buffer_backend.c b/src/lib/ringbuffer/ring_buffer_backend.c
index 26efb2bcd70dac30d468e21ea38ed869617c2bb2..9a339be0a6e9b7040abce39b9585a2f2e5d95f48 100644 (file)
--- a/src/lib/ringbuffer/ring_buffer_backend.c
+++ b/src/lib/ringbuffer/ring_buffer_backend.c
@@ -12,10 +12,10 @@
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
-#include <linux/cpu.h>
 #include <linux/mm.h>
 #include <linux/vmalloc.h>
 
+#include <wrapper/cpu.h>
 #include <wrapper/mm.h>
 #include <wrapper/vmalloc.h>   /* for wrapper_vmalloc_sync_mappings() */
 #include <ringbuffer/config.h>
@@ -445,14 +445,14 @@ int channel_backend_init(struct channel_backend *chanb,
                        chanb->cpu_hp_notifier.priority = 5;
                        register_hotcpu_notifier(&chanb->cpu_hp_notifier);
 
-                       get_online_cpus();
+                       lttng_cpus_read_lock();
                        for_each_online_cpu(i) {
                                ret = lib_ring_buffer_create(per_cpu_ptr(chanb->buf, i),
                                                         chanb, i);
                                if (ret)
                                        goto free_bufs; /* cpu hotplug locked */
                        }
-                       put_online_cpus();
+                       lttng_cpus_read_unlock();
 #else
                        for_each_possible_cpu(i) {
                                ret = lib_ring_buffer_create(per_cpu_ptr(chanb->buf, i),
@@ -485,7 +485,7 @@ free_bufs:
                 */
 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */
 #ifdef CONFIG_HOTPLUG_CPU
-               put_online_cpus();
+               lttng_cpus_read_unlock();
                unregister_hotcpu_notifier(&chanb->cpu_hp_notifier);
 #endif
 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */