sgi-xpc: 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: Robin Holt <robinmholt@gmail.com>
Cc: Steve Wahl <steve.wahl@hpe.com>
Cc: Mike Travis <mike.travis@hpe.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-17-bigeasy@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index 7791bde..ba9ae0e 100644 (file)
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -1742,7 +1742,7 @@ xpc_init_mq_node(int nid)
 {
        int cpu;
 
-       get_online_cpus();
+       cpus_read_lock();
 
        for_each_cpu(cpu, cpumask_of_node(nid)) {
                xpc_activate_mq_uv =
@@ -1753,7 +1753,7 @@ xpc_init_mq_node(int nid)
                        break;
        }
        if (IS_ERR(xpc_activate_mq_uv)) {
-               put_online_cpus();
+               cpus_read_unlock();
                return PTR_ERR(xpc_activate_mq_uv);
        }
 
@@ -1767,11 +1767,11 @@ xpc_init_mq_node(int nid)
        }
        if (IS_ERR(xpc_notify_mq_uv)) {
                xpc_destroy_gru_mq_uv(xpc_activate_mq_uv);
-               put_online_cpus();
+               cpus_read_unlock();
                return PTR_ERR(xpc_notify_mq_uv);
        }
 
-       put_online_cpus();
+       cpus_read_unlock();
        return 0;
 }