On 07/01/2015 09:02 PM, Jon Christopherson wrote:
On 07/01/2015 07:53 PM, Tejun Heo wrote:52ebea749aae ("writeback: make backing_dev_info host cgroup-specific bdi_writebacks") made bdi (backing_dev_info) host per-cgroup wb's (bdi_writeback's). As the congested state needs to be per-wb and referenced from blkcg side and multiple wbs, the patch made all non-root cong's (bdi_writeback_congested's) reference counted and indexed on bdi.<snip> Thanks Tejun, I have applied your patches and no longer see the behavior mentioned in the bug report. All is well!
Tejun, I'll pick them up, and Jon, I'll add your tested-by to the commit. Thanks!
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