diff options
| author | Feng Yang <yangfeng@kylinos.cn> | 2025-02-23 15:01:06 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:41:51 +0200 |
| commit | f93f7780c87a5c9983ee2233bd95c9d9c00d9642 (patch) | |
| tree | 9446806999ac8564b69b04cd3249f69a009c1d04 | |
| parent | 0ade24e6e0a49d38d8231b7af84a49a69bcd3a41 (diff) | |
ring-buffer: Fix bytes_dropped calculation issue
[ Upstream commit c73f0b69648501978e8b3e8fa7eef7f4197d0481 ]
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: 6c43e554a2a5 ("ring-buffer: Add ring buffer startup selftest")
Signed-off-by: Feng Yang <yangfeng@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | kernel/trace/ring_buffer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 2bbc96568a2b..fb954a8b7a8b 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -7442,9 +7442,9 @@ 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; } |