Re: [RFC PATCH v6 1/5] Thread-local ABI system call: cache CPU number of running thread

[Andy Lutomirski]

On Thu, Apr 7, 2016 at 9:39 AM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> Can anybody give a *coherent* and actual *real* reason why the kernel
> would ever care about anything else?

The rseq data structure, which is still being designed.

OTOH, that thing could be registered separately by userspace.

--Andy