oprofile: Rename variable timeout_jiffies and move to oprofile_files.c

This patch renames timeout_jiffies into an oprofile specific name. The
macro MULTIPLEXING_TIMER_DEFAULT is changed too.

Also, since this variable is controlled using oprofilefs, its
definition is moved to oprofile_files.c.
Signed-off-by: Robert Richter <robert.richter@amd.com>

drivers/oprofile/oprof.c

@@ -33,8 +33,7 @@ static DEFINE_MUTEX(start_mutex);
 
 static void switch_worker(struct work_struct *work);
 static DECLARE_DELAYED_WORK(switch_work, switch_worker);
-unsigned long timeout_jiffies;
-#define MULTIPLEXING_TIMER_DEFAULT 1
+#define TIME_SLICE_DEFAULT		1
 
 #endif
 
@@ -102,7 +101,7 @@ int oprofile_setup(void)
 
 static void start_switch_worker(void)
 {
-	schedule_delayed_work(&switch_work, timeout_jiffies);
+	schedule_delayed_work(&switch_work, oprofile_time_slice);
 }
 
 static void switch_worker(struct work_struct *work)
@@ -216,7 +215,7 @@ int oprofile_set_timeout(unsigned long val_msec)
 		goto out;
 	}
 
-	timeout_jiffies = time_slice;
+	oprofile_time_slice = time_slice;
 
 out:
 	mutex_unlock(&start_mutex);
@@ -253,7 +252,7 @@ int oprofile_set_backtrace(unsigned long val)
 
 static void __init oprofile_multiplexing_init(void)
 {
-	timeout_jiffies = msecs_to_jiffies(MULTIPLEXING_TIMER_DEFAULT);
+	oprofile_time_slice = msecs_to_jiffies(TIME_SLICE_DEFAULT);
 }
 
 #endif

drivers/oprofile/oprof.h

@@ -24,10 +24,11 @@ struct oprofile_operations;
 extern unsigned long oprofile_buffer_size;
 extern unsigned long oprofile_cpu_buffer_size;
 extern unsigned long oprofile_buffer_watershed;
+extern unsigned long oprofile_time_slice;
+
 extern struct oprofile_operations oprofile_ops;
 extern unsigned long oprofile_started;
 extern unsigned long oprofile_backtrace_depth;
-extern unsigned long timeout_jiffies;
 
 struct super_block;
 struct dentry;

drivers/oprofile/oprofile_files.c

@@ -22,14 +22,15 @@
 unsigned long oprofile_buffer_size;
 unsigned long oprofile_cpu_buffer_size;
 unsigned long oprofile_buffer_watershed;
+unsigned long oprofile_time_slice;
 
 #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
 
 static ssize_t timeout_read(struct file *file, char __user *buf,
 		size_t count, loff_t *offset)
 {
-	return oprofilefs_ulong_to_user(jiffies_to_msecs(timeout_jiffies),
-				buf, count, offset);
+	return oprofilefs_ulong_to_user(jiffies_to_msecs(oprofile_time_slice),
+					buf, count, offset);
 }