ntdll: Use lockfree implementation for get_cached_fd. (resend)

[Alexandre Julliard]

Sebastian Lackner <sebastian at fds-team.de> writes:

> Contains a couple of small improvements compared with the last
> attempt. As a reminder, the #ifdefs are there because we do not have
> 64-bit interlocked instructions on PowerPC (and I have also no idea if
> its possible at all to implement them properly).

I'm not sure we care enough about PowerPC to require this, but in any
case it would have to be done without spreading #ifdefs all over the
code.

-- 
Alexandre Julliard
julliard at winehq.org