kernel: blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race

In the Linux kernel, the following vulnerability has been resolved: blk-rq-qos: fix crash on rqqoswait vs. rqqoswakefunction race We're seeing crashes from rqqoswakefunction that look like this: BUG: unable to handle page fault for address: ffffafe180a40084 PF: supervisor write access in kernel...

blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race

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