Re: [PATCH V3] blk-cgroup: Flush stats before releasing blkcg_gq

On Tue, Jun 06, 2023 at 11:49:13AM +0800, Ming Lei wrote:

...

V3:

• add one global blkg_stat_lock for avoiding concurrent update on

blkg stat; this way is easier for backport, also won't cause contention;

Hello Jens and Tejun,

Can we move on with this patch or Waiman's version[1]?

I am fine with either one.

[1] https://lore.kernel.org/linux-block/20230525160105.1968749-1-longman@redhat....

I personally like Ming's version with a separate lock as it's a bit simpler. Let's go with that one.

Thanks.