On Sun, 16 Dec 2007, Herbert Xu wrote: > If we can get the address of the per-cpu counter against > some sort of a per-cpu base pointer, e.g., %gs on x86, then > we can do > > incq %gs:(%rax) > > where %rax would be the offset with %gs as the base. This would > obviate the need for the CPU ID and therefore avoid disabling > preemption. > > Hmm, wasn't Christoph working on something like that?
Yes that is what the cpu alloc patchset implements. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
