Re: [PATCH] futex: Set USER_DS for the futex_detect_cmpxchg() test

Max Filippov
2018-09-28T20:19:46Z

On Fri, Sep 28, 2018 at 11:02 AM, Andy Lutomirski <luto@amacapital.net> wrote:
> There may be a much nicer solution. Unless I missed something, only
> mips and xtensa even have the possibility of cmpxchg being missing.
> We could just make those arches supply a futex-detecting helper.

In case of xtensa availability of cmpxchg is known at build time.

--
Thanks.
-- Max