Re: 'simple' futex interface [Was: [PATCH v3 1/4] futex: Implement mechanism to wait on any of several futexes]

* André Almeida:

Thanks everyone for the feedback around our mechanism. Are the
performance benefits of implementing a syscall to wait on a single futex
significant enough to maintain it instead of just using
`sys_futex_waitv()` with `nr_waiters = 1`? If we join both cases in a
single interface, we may even add a new member for NUMA hint in `struct
futex_wait`.

Some seccomp user might want to verify the address, and that's easier if
it's in an argument.  But that's just a rather minor aspect.

Do you propose to drop the storage requirement for the NUMA hint
next to the futex completely?

Thanks,
Florian