On Thu, Jan 08, 2015 at 10:41:54PM -0800, Davidlohr Bueso wrote: > On Thu, 2015-01-08 at 07:22 -0800, Paul E. McKenney wrote: > > > Didn't we just obsolete ACCESS_ONCE with that {READ,WRITE}_ONCE stuff? > > > > Indeed we did! But that was after I did this commit back on October 29th. > > > > I am planning a bulk change to READ_ONCE() and ASSIGN_ONCE() either as > > the last patch for 3.20 or as the first one for 3.21. Probably as the > > first for 3.21 to minimize rebasing hassles with any needed 3.20 fixes. > > That reminds me, I think the new conversion for stores will most likely > introduce silly arg bugs: > > - ACCESS_ONCE(a) = b; > + ASSIGN_ONCE(b, a);
I was planning to do mine by hand for this sort of reason. Or are you thinking of something more subtle than the case where "b" is an unparenthesized comma-separated expression? Thanx, Paul -- 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/