On Thu, 1 Nov 2012, Shan Wei wrote: > Paul E. McKenney said, at 2012/11/1 4:08: > > > > One thing to keep in mind -- the only purpose of this is to diffuse > > memory contention. So there is no need to disable preemption. > > same question to me. > Christoph, maybe __this_cpu_read is a better choice which don't disable > preemption.
Correct. Use __this_cpu_read to reduce overhead on processor that require emulation. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
