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| author | Florent Revest <revest@chromium.org> | 2023-03-21 15:04:19 +0100 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-03-21 18:42:12 +0100 |
| commit | 23edf48309b14a201481b75fba049802eaf0baa6 (patch) | |
| tree | e57ddfac1d8f16bfbaa9d846aa52ced3259166e7 /samples/ftrace/ftrace-direct.c | |
| parent | ftrace: Let unregister_ftrace_direct_multi() call ftrace_free_filter() (diff) | |
| download | linux-23edf48309b14a201481b75fba049802eaf0baa6.tar.xz linux-23edf48309b14a201481b75fba049802eaf0baa6.zip | |
ftrace: Replace uses of _ftrace_direct APIs with _ftrace_direct_multi
The _multi API requires that users keep their own ops but can enforce
that an op is only associated to one direct call.
Link: https://lkml.kernel.org/r/20230321140424.345218-3-revest@chromium.org
Signed-off-by: Florent Revest <revest@chromium.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to '')
| -rw-r--r-- | samples/ftrace/ftrace-direct.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/samples/ftrace/ftrace-direct.c b/samples/ftrace/ftrace-direct.c index 1d3d307ca33d..42ec9e39453b 100644 --- a/samples/ftrace/ftrace-direct.c +++ b/samples/ftrace/ftrace-direct.c @@ -63,21 +63,23 @@ asm ( #endif /* CONFIG_S390 */ +static struct ftrace_ops direct; + static int __init ftrace_direct_init(void) { - return register_ftrace_direct((unsigned long)wake_up_process, - (unsigned long)my_tramp); + ftrace_set_filter_ip(&direct, (unsigned long) wake_up_process, 0, 0); + + return register_ftrace_direct_multi(&direct, (unsigned long) my_tramp); } static void __exit ftrace_direct_exit(void) { - unregister_ftrace_direct((unsigned long)wake_up_process, - (unsigned long)my_tramp); + unregister_ftrace_direct_multi(&direct, (unsigned long)my_tramp, true); } module_init(ftrace_direct_init); module_exit(ftrace_direct_exit); MODULE_AUTHOR("Steven Rostedt"); -MODULE_DESCRIPTION("Example use case of using register_ftrace_direct()"); +MODULE_DESCRIPTION("Example use case of using register_ftrace_direct_multi()"); MODULE_LICENSE("GPL"); |