linux/log2.h: Fix rounddown_pow_of_two(1)

[firefly-linux-kernel-4.4.55.git] / include / linux / stop_machine.h

diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 092dc9b1ce7d2b507880b9c6e24d0415662a027c..14d3524d12747b8c8caee6452b1259ec178c92ad 100644 (file)
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -27,6 +27,8 @@ struct cpu_stop_work {
        struct cpu_stop_done    *done;
 };
 
+extern struct mutex stop_cpus_mutex;
+
 int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg);
 void stop_one_cpu_nowait(unsigned int cpu, cpu_stop_fn_t fn, void *arg,
                         struct cpu_stop_work *work_buf);