Re: [PATCH v8 11/14] lockdep: Apply crossrelease to PG_locked locks

Byungchul Park
2017-08-10T01:36:17Z

On Mon, Aug 07, 2017 at 04:12:58PM +0900, Byungchul Park wrote:
> Although lock_page() and its family can cause deadlock, the lock
> correctness validator could not be applied to them until now, becasue
> things like unlock_page() might be called in a different context from
> the acquisition context, which violates lockdep's assumption.
>
> Thanks to CONFIG_LOCKDEP_CROSSRELEASE, we can now apply the lockdep
> detector to page locks. Applied it.

Is there any reason excluding applying it into PG_locked?