Messages in this thread | | | Date | Wed, 1 Apr 2020 16:35:51 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH 2/2] blkcg: don't offline parent blkcg first |
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On Wed, Jul 24, 2019 at 10:37:55AM -0700, Tejun Heo wrote: > blkcg->cgwb_refcnt is used to delay blkcg offlining so that blkgs > don't get offlined while there are active cgwbs on them. However, it > ends up making offlining unordered sometimes causing parents to be > offlined before children. > > Let's fix this by making child blkcgs pin the parents' online states. > > Note that pin/unpin names are chosen over get/put intentionally > because css uses get/put online for something different. > > Signed-off-by: Tejun Heo <tj@kernel.org>
Jens, these two patches slipped through the cracks. Can you please take a look at them?
Thanks.
-- tejun
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