Re: [PATCH v1 00/14] futex: More futex2 bits

From: Arnd Bergmann
Date: Fri Jul 21 2023 - 11:50:46 EST


On Fri, Jul 21, 2023, at 12:22, Peter Zijlstra wrote:
> Hi,
>
> New version of the futex2 patches. These are actually tested and appear to work
> as expected.
>
> I'm hoping to get at least the first 3 patches merged such that Jens can base
> the io_uring futex patches on them.
>
>
> Changes since v0:
> - switched over to 'unsigned long' for values (Arnd)
> - unshare vmalloc_huge() (Willy)
> - added wait/requeue syscalls
> - fixed NUMA to support sparse nodemask
> - added FUTEX2_n vs FUTEX2_NUMA check to ensure
> the node_id fits in the futex
> - added selftests
> - fixed a ton of silly bugs

The changes look good to me, and the ABI should be fine without
special compat handler now. I sent a couple of minor comments, but
nothing important.

Arnd