diff options
Diffstat (limited to 'samples/ftrace/ftrace-direct-modify.c')
| -rw-r--r-- | samples/ftrace/ftrace-direct-modify.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/samples/ftrace/ftrace-direct-modify.c b/samples/ftrace/ftrace-direct-modify.c index d93abbcb1f4c..25fba66f61c0 100644 --- a/samples/ftrace/ftrace-direct-modify.c +++ b/samples/ftrace/ftrace-direct-modify.c @@ -96,6 +96,8 @@ asm ( #endif /* CONFIG_S390 */ +static struct ftrace_ops direct; + static unsigned long my_tramp = (unsigned long)my_tramp1; static unsigned long tramps[2] = { (unsigned long)my_tramp1, @@ -114,7 +116,7 @@ static int simple_thread(void *arg) if (ret) continue; t ^= 1; - ret = modify_ftrace_direct(my_ip, my_tramp, tramps[t]); + ret = modify_ftrace_direct(&direct, tramps[t]); if (!ret) my_tramp = tramps[t]; WARN_ON_ONCE(ret); @@ -129,7 +131,9 @@ static int __init ftrace_direct_init(void) { int ret; - ret = register_ftrace_direct(my_ip, my_tramp); + ftrace_set_filter_ip(&direct, (unsigned long) my_ip, 0, 0); + ret = register_ftrace_direct(&direct, my_tramp); + if (!ret) simple_tsk = kthread_run(simple_thread, NULL, "event-sample-fn"); return ret; @@ -138,7 +142,7 @@ static int __init ftrace_direct_init(void) static void __exit ftrace_direct_exit(void) { kthread_stop(simple_tsk); - unregister_ftrace_direct(my_ip, my_tramp); + unregister_ftrace_direct(&direct, my_tramp, true); } module_init(ftrace_direct_init); |