---

yaml --- r: 108473 b: refs/heads/master c: 9bdeb7b h: refs/heads/master i: 108471: 95e80fe v: v3
git-mirror · Aug 15, 2008 · a66d552 · a66d552
1 parent 32903a3
commit a66d552
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Showing 2 changed files with 22 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 73bd9c72a29be1e8de008186eea55d333a938804
+refs/heads/master: 9bdeb7b5d34f197dea7859d24475943395ffea5e
diff --git a/trunk/include/linux/ftrace.h b/trunk/include/linux/ftrace.h
@@ -98,6 +98,27 @@ static inline void tracer_disable(void)
 #endif
 }
 
+/* Ftrace disable/restore without lock. Some synchronization mechanism
+ * must be used to prevent ftrace_enabled to be changed between
+ * disable/restore. */
+static inline int __ftrace_enabled_save(void)
+{
+#ifdef CONFIG_FTRACE
+	int saved_ftrace_enabled = ftrace_enabled;
+	ftrace_enabled = 0;
+	return saved_ftrace_enabled;
+#else
+	return 0;
+#endif
+}
+
+static inline void __ftrace_enabled_restore(int enabled)
+{
+#ifdef CONFIG_FTRACE
+	ftrace_enabled = enabled;
+#endif
+}
+
 #ifdef CONFIG_FRAME_POINTER
 /* TODO: need to fix this for ARM */
 # define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))