Hello,

On Fri, Feb 23, 2018 at 12:29:25PM +0800, Chengguang Xu wrote:

quoted

That's true, the issue Shaohua has fixed is double charge, but double
stat issue still exists.

Jiufei has posted a fix, which has already been tested by Bo Liu:
[PATCH RESEND] blk-throttle: avoid double counted
https://www.mail-archive.com/linux-block@vger.kernel.org/msg18516.html

Shaohua, can you please take a look at the patch?

Thanks.

-- 
tejun