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authorDivya Indi <divya.indi@oracle.com>2019-11-20 11:08:38 -0800
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2019-11-22 19:41:08 -0500
commit28879787147358e8ffcae397f11748de3dd26577 (patch)
tree560208f6a3e28a31d56c00e9b756c52c3035bdfb /include/linux/trace.h
parentfc809bc5ceaa665497384064ab2d76713c774bad (diff)
tracing: Adding new functions for kernel access to Ftrace instances
Adding 2 new functions - 1) struct trace_array *trace_array_get_by_name(const char *name); Return pointer to a trace array with given name. If it does not exist, create and return pointer to the new trace array. 2) int trace_array_set_clr_event(struct trace_array *tr, const char *system ,const char *event, bool enable); Enable/Disable events to this trace array. Additionally, - To handle reference counters, export trace_array_put() - Due to introduction of the above 2 new functions, we no longer need to export - ftrace_set_clr_event & trace_array_create APIs. Link: http://lkml.kernel.org/r/1574276919-11119-2-git-send-email-divya.indi@oracle.com Signed-off-by: Divya Indi <divya.indi@oracle.com> Reviewed-by: Aruna Ramakrishna <aruna.ramakrishna@oracle.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/trace.h')
-rw-r--r--include/linux/trace.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/trace.h b/include/linux/trace.h
index 24fcf07812ae..7fd86d3c691f 100644
--- a/include/linux/trace.h
+++ b/include/linux/trace.h
@@ -29,7 +29,8 @@ struct trace_array;
void trace_printk_init_buffers(void);
int trace_array_printk(struct trace_array *tr, unsigned long ip,
const char *fmt, ...);
-struct trace_array *trace_array_create(const char *name);
+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);
#endif /* CONFIG_TRACING */