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authorSteven Rostedt (Google) <rostedt@goodmis.org>2023-02-07 20:28:51 +0300
committerSteven Rostedt (Google) <rostedt@goodmis.org>2023-02-07 20:49:56 +0300
commitc4846480831ea526bcab0ca0bf6364bfa6ed4227 (patch)
tree642a94f96d1622881b1c4fcbff5ab0e5a3114f81 /kernel/trace/trace.h
parentcb1f98c5e5742273bca39410d504430793ab701a (diff)
downloadlinux-c4846480831ea526bcab0ca0bf6364bfa6ed4227.tar.xz
tracing: Add enabling of events to boot instances
Add the format of: trace_instance=foo,sched:sched_switch,irq_handler_entry,initcall That will create the "foo" instance and enable the sched_switch event (here were the "sched" system is explicitly specified), the irq_handler_entry event, and all events under the system initcall. Link: https://lkml.kernel.org/r/20230207173026.386114535@goodmis.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Ross Zwisler <zwisler@google.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
-rw-r--r--kernel/trace/trace.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index d16929dd0f08..f10bf804dd2b 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1334,6 +1334,8 @@ DECLARE_PER_CPU(int, trace_buffered_event_cnt);
void trace_buffered_event_disable(void);
void trace_buffered_event_enable(void);
+void early_enable_events(struct trace_array *tr, char *buf, bool disable_first);
+
static inline void
__trace_event_discard_commit(struct trace_buffer *buffer,
struct ring_buffer_event *event)