Re: [PATCH RFC 12/26] arm64: Remove spin_unlock_wait() arch-specific definitions

From: Paul E. McKenney
Date: Fri Jun 30 2017 - 13:29:57 EST


On Fri, Jun 30, 2017 at 10:20:57AM +0100, Will Deacon wrote:
> On Thu, Jun 29, 2017 at 05:01:20PM -0700, Paul E. McKenney wrote:
> > There is no agreed-upon definition of spin_unlock_wait()'s semantics,
> > and it appears that all callers could do just as well with a lock/unlock
> > pair. This commit therefore removes the underlying arch-specific
> > arch_spin_unlock_wait().
> >
> > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> > Cc: Will Deacon <will.deacon@xxxxxxx>
> > Cc: <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>
> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> > Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> > Cc: Andrea Parri <parri.andrea@xxxxxxxxx>
> > Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> > ---
> > arch/arm64/include/asm/spinlock.h | 58 ++++-----------------------------------
> > 1 file changed, 5 insertions(+), 53 deletions(-)
>
> I'm going to miss this code.

;-) ;-) ;-)

> Acked-by: Will Deacon <will.deacon@xxxxxxx>

Applied, thank you!

Thanx, Paul