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-rw-r--r--include/linux/trace_remote.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/trace_remote.h b/include/linux/trace_remote.h
index 65b7e7b8267c..10ca03dc192b 100644
--- a/include/linux/trace_remote.h
+++ b/include/linux/trace_remote.h
@@ -17,6 +17,8 @@
* remote to allow writing.
* @swap_reader_page: Called when Tracefs consumes a new page from a
* ring-buffer. It is expected from the remote to isolate a
+ * @reset: Called on `echo 0 > trace`. It is expected from the
+ * remote to reset all ring-buffer pages.
* new reader-page from the @cpu ring-buffer.
*/
struct trace_remote_callbacks {
@@ -24,6 +26,7 @@ struct trace_remote_callbacks {
void (*unload_trace_buffer)(struct trace_buffer_desc *desc, void *priv);
int (*enable_tracing)(bool enable, void *priv);
int (*swap_reader_page)(unsigned int cpu, void *priv);
+ int (*reset)(unsigned int cpu, void *priv);
};
int trace_remote_register(const char *name, struct trace_remote_callbacks *cbs, void *priv);