On Fri, 2016-10-06 at 03:51:28 UTC, Boqun Feng wrote: > There is an ordering issue with spin_unlock_wait() on powerpc, because > the spin_lock primitive is an ACQUIRE and an ACQUIRE is only ordering > the load part of the operation with memory operations following it. ... > > Suggested-by: "Paul E. McKenney" <[email protected]> > Signed-off-by: Boqun Feng <[email protected]> > Reviewed-by: "Paul E. McKenney" <[email protected]> > [mpe: Inline the "nop" ll/sc loop and set EH=0, munge change log] > Signed-off-by: Michael Ellerman <[email protected]>
Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/6262db7c088bbfc26480d10144 cheers
