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| author | YueHaibing <yuehaibing@huawei.com> | 2018-09-23 12:11:33 +0000 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-04-02 18:24:06 -0400 |
| commit | 40ed29b373381532ef222e509c5aa69a1d8561ea (patch) | |
| tree | a7bca07a96cc7da1f43e9c332a2f3ac860668fda /kernel | |
| parent | 79a3aaa7b82e3106be97842dedfd8429248896e6 (diff) | |
| download | linux-stable-40ed29b373381532ef222e509c5aa69a1d8561ea.tar.gz linux-stable-40ed29b373381532ef222e509c5aa69a1d8561ea.tar.bz2 linux-stable-40ed29b373381532ef222e509c5aa69a1d8561ea.zip | |
ring-buffer: Fix ring buffer size in rb_write_something()
'cnt' should be used to calculate ring buffer size rather than data->cnt
Link: http://lkml.kernel.org/r/1537704693-184237-1-git-send-email-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 41b6f96e5366..4f33d7d841af 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -4979,7 +4979,7 @@ static __init int rb_write_something(struct rb_test_data *data, bool nested) cnt = data->cnt + (nested ? 27 : 0); /* Multiply cnt by ~e, to make some unique increment */ - size = (data->cnt * 68 / 25) % (sizeof(rb_string) - 1); + size = (cnt * 68 / 25) % (sizeof(rb_string) - 1); len = size + sizeof(struct rb_item); |