Commit c73f0b69 authored by Feng Yang's avatar Feng Yang Committed by Steven Rostedt (Google)
Browse files

ring-buffer: Fix bytes_dropped calculation issue 

The calculation of bytes-dropped and bytes_dropped_nested is reversed.
Although it does not affect the final calculation of total_dropped,
it should still be modified.

Link: https://lore.kernel.org/20250223070106.6781-1-yangfeng59949@163.com


Fixes: 6c43e554 ("ring-buffer: Add ring buffer startup selftest")
Signed-off-by: default avatarFeng Yang <yangfeng@kylinos.cn>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
parent d082ecbc

kernel/trace/ring_buffer.c

+2 −2
Original line number Diff line number Diff line
@@ -7411,9 +7411,9 @@ static __init int rb_write_something(struct rb_test_data *data, bool nested) 
		/* Ignore dropped events before test starts. */

		if (started) {

			if (nested)

				data->bytes_dropped += len;

			else

				data->bytes_dropped_nested += len;

			else

				data->bytes_dropped += len;

		}

		return len;

	}