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| author | Feng Yang <yangfeng@kylinos.cn> | 2025-02-23 15:01:06 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:33:37 +0200 |
| commit | 6fc6fa800e5b2268c1952e269d0c26c7e12ab7eb (patch) | |
| tree | 0c7a579099b7f81d7244d08e9feb68d222704bca | |
| parent | 3420c271219860026e2324005712709f3d4e92ca (diff) | |
| download | linux-6fc6fa800e5b2268c1952e269d0c26c7e12ab7eb.tar.gz linux-6fc6fa800e5b2268c1952e269d0c26c7e12ab7eb.tar.bz2 linux-6fc6fa800e5b2268c1952e269d0c26c7e12ab7eb.zip | |
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 0093fc56ab3a..21b7d044797e 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -5994,9 +5994,9 @@ 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; } |