[PATCH 1/2] erofs: fix up erofs_lookup tracepoint

[Chao Yu]

On 2021/9/21 22:35, Gao Xiang wrote:
> Fix up a misuse that the filename pointer isn't always valid in
> the ring buffer, and we should copy the content instead.
> 
> Fixes: 13f06f48f7bf ("staging: erofs: support tracepoint")
> Cc: stable at vger.kernel.org # 4.19+
> Signed-off-by: Gao Xiang <hsiangkao at linux.alibaba.com>

Reviewed-by: Chao Yu <chao at kernel.org>

Thanks,