net/iucv: 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.

Cc: Julian Wiedmann <jwi@linux.ibm.com>
Cc: Karsten Graul <kgraul@linux.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-s390@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index bebc7d0..f3343a8 100644 (file)
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -502,14 +502,14 @@ static void iucv_setmask_mp(void)
 {
        int cpu;
 
-       get_online_cpus();
+       cpus_read_lock();
        for_each_online_cpu(cpu)
                /* Enable all cpus with a declared buffer. */
                if (cpumask_test_cpu(cpu, &iucv_buffer_cpumask) &&
                    !cpumask_test_cpu(cpu, &iucv_irq_cpumask))
                        smp_call_function_single(cpu, iucv_allow_cpu,
                                                 NULL, 1);
-       put_online_cpus();
+       cpus_read_unlock();
 }
 
 /**
@@ -542,7 +542,7 @@ static int iucv_enable(void)
        size_t alloc_size;
        int cpu, rc;
 
-       get_online_cpus();
+       cpus_read_lock();
        rc = -ENOMEM;
        alloc_size = iucv_max_pathid * sizeof(struct iucv_path);
        iucv_path_table = kzalloc(alloc_size, GFP_KERNEL);
@@ -555,12 +555,12 @@ static int iucv_enable(void)
        if (cpumask_empty(&iucv_buffer_cpumask))
                /* No cpu could declare an iucv buffer. */
                goto out;
-       put_online_cpus();
+       cpus_read_unlock();
        return 0;
 out:
        kfree(iucv_path_table);
        iucv_path_table = NULL;
-       put_online_cpus();
+       cpus_read_unlock();
        return rc;
 }
 
@@ -573,11 +573,11 @@ out:
  */
 static void iucv_disable(void)
 {
-       get_online_cpus();
+       cpus_read_lock();
        on_each_cpu(iucv_retrieve_cpu, NULL, 1);
        kfree(iucv_path_table);
        iucv_path_table = NULL;
-       put_online_cpus();
+       cpus_read_unlock();
 }
 
 static int iucv_cpu_dead(unsigned int cpu)
@@ -786,7 +786,7 @@ static int iucv_reboot_event(struct notifier_block *this,
        if (cpumask_empty(&iucv_irq_cpumask))
                return NOTIFY_DONE;
 
-       get_online_cpus();
+       cpus_read_lock();
        on_each_cpu_mask(&iucv_irq_cpumask, iucv_block_cpu, NULL, 1);
        preempt_disable();
        for (i = 0; i < iucv_max_pathid; i++) {
@@ -794,7 +794,7 @@ static int iucv_reboot_event(struct notifier_block *this,
                        iucv_sever_pathid(i, NULL);
        }
        preempt_enable();
-       put_online_cpus();
+       cpus_read_unlock();
        iucv_disable();
        return NOTIFY_DONE;
 }