Re: [RFC] Userspace RCU: (ab)using futexes to save cpu cycles andenergy

[Michael Schnell]

Michael Schnell wrote:
> Why is that different ?

It might be that (different from a sema), a FUTEX can only be unlocked
by the process that locked it.

But then why should FUTEX offer advantages over sema, if in that
application the FUTEX is supposed to block with a system call, anyway ?

-Michael
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/