Messages in this thread | | | Date | Thu, 5 Jan 2023 08:32:49 -1000 | From | Tejun Heo <> | Subject | Re: [PATCH v2 1/2] blk-iocost: add refcounting for iocg |
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On Thu, Jan 05, 2023 at 09:14:07AM +0800, Yu Kuai wrote: > 1) is related to blkg, while 2) is not, hence refcnting from blkg can't > fix the problem. refcnting from blkcg_policy_data should be ok, but I > see that bfq already has the similar refcnting, while other policy > doesn't require such refcnting.
Hmm... taking a step back, wouldn't this be solved by moving the first part of ioc_pd_free() to pd_offline_fn()? The ordering is strictly defined there, right?
Thanks.
-- tejun
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