| Date | Mon, 3 Feb 2020 06:20:50 -0800 | From | Christoph Hellwig <> | Subject | Re: [PATCH -v2 5/7] locking/percpu-rwsem: Remove the embedded rwsem |
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On Fri, Jan 31, 2020 at 04:07:08PM +0100, Peter Zijlstra wrote: > @@ -53,12 +53,6 @@ struct rw_semaphore { > #endif > }; > > -/* > - * Setting all bits of the owner field except bit 0 will indicate > - * that the rwsem is writer-owned with an unknown owner. > - */ > -#define RWSEM_OWNER_UNKNOWN (-2L)
Can you split the removal of the non-owned resem support into a separate patch? I still think keeping this one and moving aio to that scheme is a better idea than the current ad-hoc locking scheme that has all kinds of issues.
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