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

[Will Deacon]

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>

Will