Re: [thiscpuops upgrade 09/10] x86: this_cpu_cmpxchg andthis_cpu_cmpxchg_double operations

[Christoph Lameter]

On Wed, 24 Nov 2010, Eric Dumazet wrote:

> I thought some x86_64 cpus dont have cmpxchg16b ?

Right I vaguely remember a flag there.

> You have to check cx16 feature flag or implement a fallback ?

There is already a compile time fallback. Uhh.. How do I do this at
runtime?

--
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/