Re: [RESEND][PATCH v2] cfq: clear queue pointers from cfqg after unpinning them in cfq_pd_offline

From: Jens Axboe
Date: Thu Oct 11 2018 - 13:46:43 EST


On 10/10/18 3:16 PM, Maciej S. Szmigiero wrote:
> BFQ is already doing a similar thing in its .pd_offline_fn() method
> implementation.
>
> While it seems that after commit 4c6994806f70
> ("blk-throttle: fix race between blkcg_bio_issue_check() and cgroup_rmdir()")
> was reverted leaving these pointers intact no longer causes crashes
> clearing them is still a sensible thing to do to make the code more robust.

Applied, thanks.

--
Jens Axboe