On 4/29/19 7:52 PM, Ming Lei wrote:
> Hi,
>
> Since 45a9c9d909b2 ("blk-mq: Fix a use-after-free"), run queue isn't
> allowed during cleanup queue even though queue refcount is held.
>
> This change has caused lots of kernel oops triggered in run queue path,
> turns out it isn't easy to fix them all.
>
> So move freeing of hw queue resources into hctx's release handler, then
> the above issue is fixed. Meantime, this way is safe given freeing hw
> queue resource doesn't require tags.
Applied, thanks Ming.
--
Jens Axboe
