Messages in this thread | | | Date | Tue, 16 Nov 2021 00:07:28 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH v4] locking/rwsem: Make handoff bit handling more consistent |
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On Mon, Nov 15, 2021 at 05:29:10PM -0500, Waiman Long wrote: > > The handoff_set flag can only be true for a first waiter. A random waiter in > the middle of a wait queue will never has this flag set. > > This flag is set in two places in rwsem_try_write_lock():
Bah, I thought it would unconditionally propagate the bit from @count. I missed the early exit :/
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