Re: spin_trylock broken on UP?

Manfred Spraul (manfreds@colorfullife.com)
Thu, 09 Dec 1999 23:22:19 +0100


Charles 'Buck' Krasic wrote:
>
> Conceptually, I think my code is valid. Am I missing an obvious
> reason why spin_trylock shouldn't be allowed from an interrupt?
>
spin_trylock() is a nop on UP builds. That's a feature, otherwise we
would need full spinlocks even on uniprocessors builds.

If you really need it then look at linux/net/ipv4/icmp.c.

--
	Manfred

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