Hi, I'd been chatting with Jens about this, so obviously I'm interested in the feature... On 2023-06-09 12:31:24 -0600, Jens Axboe wrote: > Add support for FUTEX_WAKE/WAIT primitives. > > IORING_OP_FUTEX_WAKE is mix of FUTEX_WAKE and FUTEX_WAKE_BITSET, as > it does support passing in a bitset. > > Similary, IORING_OP_FUTEX_WAIT is a mix of FUTEX_WAIT and > FUTEX_WAIT_BITSET. One thing I was wondering about is what happens when there are multiple OP_FUTEX_WAITs queued for the same futex, and that futex gets woken up. I don't really have an opinion about what would be best, just that it'd be helpful to specify the behaviour. Greetings, Andres Freund
