On Tue, Dec 08, 2020 at 09:11:29AM +0100, Peter Zijlstra wrote: > On Mon, Dec 07, 2020 at 11:44:06AM -0800, Paul E. McKenney wrote: > > > Also, in this particular case, why data_race() rather than READ_ONCE()? > > Do we really expect the compiler to be able to optimize this case > > significantly without READ_ONCE()? > > It's about intent and how the code reads. READ_ONCE() is something > completely different from data_race(). data_race() is correct here.
Why?
Thanx, Paul
