On Tue, Jul 11, 2023 at 06:47:05PM -0600, Jens Axboe wrote: > Needs a bit of splitting and a few hunks should go further back (like > the wake handler typedef). > > WIP, adds IORING_OP_FUTEX_WAITV - pass in an array of futex addresses, > and wait on all of them until one of them triggers. > So I'm once again not following. FUTEX_WAITV is to wait on multiple futexes and get a notification when any one of them wakes up with an index to indicate which one. How exactly is that different from multiple FUTEX_WAIT entries in the io_uring thing itself? Admittedly I don't actually know much of anything when it comes to io_uring, but isn't the idea that queue multiple 'syscall' like things and get individual completions back? So how does WAITV make sense here?
