On Mon, Oct 27, 2014 at 10:36:21AM -0700, Paul E. McKenney wrote: > Code making direct use of smp_read_barrier_depends() is harder to read, > in my experience, but good point on the sparse noise. Maybe a new > lockless_dereference() primitive? Maybe something like the following? > (Untested, probably does not even build.) > > #define lockless_dereference(p) \ > ({ \ > typeof(*p) *_________p1 = ACCESS_ONCE(p); \ > smp_read_barrier_depends(); /* Dependency order vs. p above. */ \ > _________p1; \ > }) Hmm... Where would you prefer to put it? rcupdate.h? -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html