On Mon, Dec 07 2020 at 11:44, Paul E. McKenney wrote: > On Mon, Dec 07, 2020 at 07:19:51PM +0100, Marco Elver wrote: >> On Mon, 7 Dec 2020 at 18:46, Thomas Gleixner <t...@linutronix.de> wrote: >> I currently don't know what the rule for Peter's preferred variant >> would be, without running the risk of some accidentally data_race()'d >> accesses. >> >> Thoughts? > > I am also concerned about inadvertently covering code with data_race(). > > 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()?
That was your suggestion a week or so ago :) Thanks, tglx