diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2026-02-07 22:24:23 -0500 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2026-02-08 21:01:12 -0500 |
| commit | 93c88d06accdeceee4fbd243b084d3749bcd96d7 (patch) | |
| tree | 86864fbd04d9c13042080573bc5b0a5139e71bfd /kernel/trace | |
| parent | 1c53d781d42541adc5ba76b4f843a3ff382e01fb (diff) | |
tracing: Make tracing_update_buffers() take NULL for global_trace
The trace.c file has become a dumping ground for all tracing code and has
become quite large. In order to move the trace_printk functions out of it
these functions can not access global_trace directly, as that is something
that needs to stay static in trace.c.
Have tracing_update_buffers() take NULL for its trace_array to denote it
should work on the global_trace top level trace_array allows that function
to be used outside of trace.c and still update the global_trace
trace_array.
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>
Link: https://patch.msgid.link/20260208032450.318864210@kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 4a73822e2603..601b6f622391 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3234,7 +3234,7 @@ void trace_printk_init_buffers(void) pr_warn("**********************************************************\n"); /* Expand the buffers to set size */ - if (tracing_update_buffers(&global_trace) < 0) + if (tracing_update_buffers(NULL) < 0) pr_err("Failed to expand tracing buffers for trace_printk() calls\n"); else buffers_allocated = 1; @@ -6186,6 +6186,9 @@ int tracing_update_buffers(struct trace_array *tr) { int ret = 0; + if (!tr) + tr = &global_trace; + guard(mutex)(&trace_types_lock); update_last_data(tr); |