Re: [PATCH v2 1/2] blk-cgroup: Correctly free percpu iostat_cpu in blkg on error exit

[Tejun Heo]

On Wed, Jun 01, 2022 at 12:53:23PM -0400, Waiman Long wrote:
> Commit f73316482977 ("blk-cgroup: reimplement basic IO stats using cgroup
> rstat") changes block cgroup IO stats to use the rstat APIs. It added
> a new percpu iostat_cpu field into blkg. The blkg_alloc() was modified
> to allocate the new percpu iostat_cpu but didn't free it when an error
> happened. Fix this by freeing the percpu iostat_cpu on error exit.
> 
> Fixes: f73316482977 ("blk-cgroup: reimplement basic IO stats using cgroup rstat")
> Signed-off-by: Waiman Long <longman@xxxxxxxxxx>

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

-- 
tejun