linux-kernel - Re: [PATCH RFC 12/26] arm64: Remove spin_unlock

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Message-Id: <20170630172943.GY2393@linux.vnet.ibm.com>
Date:   Fri, 30 Jun 2017 10:29:43 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     Will Deacon <will.deacon@....com>
Cc:     linux-kernel@...r.kernel.org, netfilter-devel@...r.kernel.org,
        netdev@...r.kernel.org, oleg@...hat.com, akpm@...ux-foundation.org,
        mingo@...hat.com, dave@...olabs.net, manfred@...orfullife.com,
        tj@...nel.org, arnd@...db.de, linux-arch@...r.kernel.org,
        peterz@...radead.org, stern@...land.harvard.edu,
        parri.andrea@...il.com, torvalds@...ux-foundation.org,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH RFC 12/26] arm64: Remove spin_unlock_wait() arch-specific
 definitions

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@...ux.vnet.ibm.com>
> > Cc: Catalin Marinas <catalin.marinas@....com>
> > Cc: Will Deacon <will.deacon@....com>
> > Cc: <linux-arm-kernel@...ts.infradead.org>
> > Cc: Peter Zijlstra <peterz@...radead.org>
> > Cc: Alan Stern <stern@...land.harvard.edu>
> > Cc: Andrea Parri <parri.andrea@...il.com>
> > Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> > ---
> >  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@....com>

Applied, thank you!

							Thanx, Paul