On Tue, Jun 17, 2014 at 12:00:40PM -0400, Tejun Heo wrote: > Hello, Christoph. > > On Tue, Jun 17, 2014 at 10:56:10AM -0500, Christoph Lameter wrote: > > Uhhh no. The percpu stuff and the associated per cpu atomics are to be > > used for stuff that is per cpu specific and runs at the fastest speed > > doable at that level. Introducing implicit barriers is not that good an > > idea. > > Hmmm? Read barriers are noops on all archs except for alpha and
Oops, data dependency barriers, not read barrier. > percpu pointer assignments aren't exactly a high frequency operation > and I'm pretty sure we'll end up with a raw variant anyway. -- tejun -- 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/
