Messages in this thread Patch in this message | | | From | Jeff Xie <> | Subject | [PATCH 2/3] tracing: make tracepoint_printk_key public | Date | Wed, 30 Mar 2022 00:39:30 +0800 |
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The syscall tracepoints need tracepoint_printk_key for the tp_printk work.
Signed-off-by: Jeff Xie <xiehuan09@gmail.com> --- kernel/trace/trace.c | 2 +- kernel/trace/trace.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 867f00473f9f..8efee5d339b9 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -88,7 +88,7 @@ void __init disable_tracing_selftest(const char *reason) struct trace_iterator *tracepoint_print_iter; int tracepoint_printk; static bool tracepoint_printk_stop_on_boot __initdata; -static DEFINE_STATIC_KEY_FALSE(tracepoint_printk_key); +DEFINE_STATIC_KEY_FALSE(tracepoint_printk_key); /* For tracers that don't implement custom flags */ static struct tracer_opt dummy_tracer_opt[] = { diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 7ce345699ac2..f44a9510209c 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -1524,6 +1524,7 @@ static inline void *event_file_data(struct file *filp) extern struct mutex event_mutex; extern struct list_head ftrace_events; extern spinlock_t tracepoint_iter_lock; +DECLARE_STATIC_KEY_FALSE(tracepoint_printk_key); extern const struct file_operations event_trigger_fops; extern const struct file_operations event_hist_fops; -- 2.25.1
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