diff options
| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-02-20 17:06:16 +0300 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-03-17 14:58:53 +0300 |
| commit | 2cc621fd2e9b8494df06de459c14738cf76add91 (patch) | |
| tree | b08fe4bb8c7a67a38cbfd18325d3f363724bf125 /kernel/trace/trace.h | |
| parent | e85d471c2be5d3d4dadee1110db316f352daaf0b (diff) | |
| download | linux-2cc621fd2e9b8494df06de459c14738cf76add91.tar.xz | |
tracing: Move saved_cmdline code into trace_sched_switch.c
The code that handles saved_cmdlines is split between the trace.c file and
the trace_sched_switch.c. There's some history to this. The
trace_sched_switch.c was originally created to handle the sched_switch
tracer that was deprecated due to sched_switch trace event making it
obsolete. But that file did not get deleted as it had some code to help
with saved_cmdlines. But trace.c has grown tremendously since then. Just
move all the saved_cmdlines code into trace_sched_switch.c as that's the
only reason that file still exists, and trace.c has gotten too big.
No functional changes.
Link: https://lore.kernel.org/linux-trace-kernel/20240220140703.497966629@goodmis.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Vincent Donnefort <vdonnefort@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Mete Durlu <meted@linux.ibm.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 00f873910c5d..e4f0714d7a49 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -1375,6 +1375,16 @@ static inline void trace_buffer_unlock_commit(struct trace_array *tr, trace_buffer_unlock_commit_regs(tr, buffer, event, trace_ctx, NULL); } +DECLARE_PER_CPU(bool, trace_taskinfo_save); +int trace_save_cmdline(struct task_struct *tsk); +int trace_create_savedcmd(void); +int trace_alloc_tgid_map(void); +void trace_free_saved_cmdlines_buffer(void); + +extern const struct file_operations tracing_saved_cmdlines_fops; +extern const struct file_operations tracing_saved_tgids_fops; +extern const struct file_operations tracing_saved_cmdlines_size_fops; + DECLARE_PER_CPU(struct ring_buffer_event *, trace_buffered_event); DECLARE_PER_CPU(int, trace_buffered_event_cnt); void trace_buffered_event_disable(void); |