diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-08-06 12:46:49 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-08-07 17:05:01 -0400 |
| commit | 38ce2a9e33db61a3041840310077072d6210ead4 (patch) | |
| tree | 50388808fbce15239d7c4ae3a9fbe2150939a496 /include | |
| parent | 10de795a5addd1962406796a6e13ba6cc0fc6bee (diff) | |
tracing: Add trace_array_init_printk() to initialize instance trace_printk() buffers
As trace_array_printk() used with not global instances will not add noise to
the main buffer, they are OK to have in the kernel (unlike trace_printk()).
This require the subsystem to create their own tracing instance, and the
trace_array_printk() only writes into those instances.
Add trace_array_init_printk() to initialize the trace_printk() buffers
without printing out the WARNING message.
Reported-by: Sean Paul <sean@poorly.run>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/trace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/trace.h b/include/linux/trace.h index 7fd86d3c691f..36d255d66f88 100644 --- a/include/linux/trace.h +++ b/include/linux/trace.h @@ -29,6 +29,7 @@ struct trace_array; void trace_printk_init_buffers(void); int trace_array_printk(struct trace_array *tr, unsigned long ip, const char *fmt, ...); +int trace_array_init_printk(struct trace_array *tr); void trace_array_put(struct trace_array *tr); struct trace_array *trace_array_get_by_name(const char *name); int trace_array_destroy(struct trace_array *tr); |