Re: block: percpu ref (blkg_release) <= 0 (0) after switching to atomic

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On Wed, Dec 19, 2018 at 11:25:21AM +0800, Ming Lei wrote:
> Hi Jens and Dennis,
> 
> The following warning can be triggered on for-4.21/block when running
> xfstests generic/475(xfs), and it is introduced by recent Dennis's patches.
> 
> test disk: virtio-blk
> scratch: nvme-pci disk

oops, the test disk is virtio-scsi, and seems it isn't easy to trigger
on virtio-blk.


Thanks,
Ming



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