On Fri, May 30 2008, Paul E. McKenney wrote: > On Thu, May 29, 2008 at 10:58:15AM +0200, Jens Axboe wrote: > > This adds kernel/smp.c which contains helpers for IPI function calls. In > > addition to supporting the existing smp_call_function() in a more efficient > > manner, it also adds a more scalable variant called smp_call_function_single() > > for calling a given function on a single CPU only. > > > > The core of this is based on the x86-64 patch from Nick Piggin, lots of > > changes since then. "Alan D. Brunelle" <Alan.Brunelle@xxxxxx> has > > contributed lots of fixes and suggestions as well. Also thanks to > > Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> for reviewing RCU usage > > and getting rid of the data allocation fallback deadlock. > > Looks much improved!!! A few suggestions for header comments, and > there appears to be a leftover memory barrier that should now be > removed. With these changes: Thanks Paul, I added the three extra comments to the kerneldoc for those functions. And you are right about write ordering memory barrier, we don't need that anymore. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
