Merge branch 'linus' into tracing/core

Merge reason: update to upstream tracing facilities

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 13 deletions

diff --git a/kernel/async.c b/kernel/async.c
index f565891f2c9b..968ef9457d4e 100644
--- a/kernel/async.c
+++ b/kernel/async.c
@@ -49,6 +49,7 @@ asynchronous and synchronous parts of the kernel.
 */
 
 #include <linux/async.h>
+#include <linux/bug.h>
 #include <linux/module.h>
 #include <linux/wait.h>
 #include <linux/sched.h>
@@ -387,20 +388,11 @@ static int async_manager_thread(void *unused)
 
 static int __init async_init(void)
 {
-        if (async_enabled)
-                if (IS_ERR(kthread_run(async_manager_thread, NULL,
-                                       "async/mgr")))
-                        async_enabled = 0;
-        return 0;
-}
+        async_enabled =
+                !IS_ERR(kthread_run(async_manager_thread, NULL, "async/mgr"));
 
-static int __init setup_async(char *str)
-{
-        async_enabled = 1;
-        return 1;
+        WARN_ON(!async_enabled);
+        return 0;
 }
 
-__setup("fastboot", setup_async);
-
-
 core_initcall(async_init);