Re: [PATCH v4] locking/rwsem: Make handoff bit handling more consistent

[Peter Zijlstra]

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 :/