Re: [PATCH 3/8] mutex: Modify the way optimistic spinners are queued

[Jason Low <jason.low2@hp.com>]

On Mon, 2014-02-10 at 20:58 +0100, Peter Zijlstra wrote:
> Cc: tglx@linutronix.de
> Cc: riel@redhat.com
> Cc: akpm@linux-foundation.org
> Cc: davidlohr@hp.com
> Cc: hpa@zytor.com
> Cc: andi@firstfloor.org
> Cc: aswin@hp.com
> Cc: mingo@kernel.org
> Cc: scott.norton@hp.com
> Cc: chegu_vinod@hp.com
> Cc: Waiman.Long@hp.com
> Cc: paulmck@linux.vnet.ibm.com
> Cc: torvalds@linux-foundation.org
> Signed-off-by: Jason Low <jason.low2@hp.com>
> Signed-off-by: Peter Zijlstra <peterz@infradead.org>
> Link: http://lkml.kernel.org/r/1390936396-3962-3-git-send-email-jason.low2@hp.com
> ---
>  kernel/locking/mutex.c |   17 +++++++----------
>  1 file changed, 7 insertions(+), 10 deletions(-)
> 
> --- a/kernel/locking/mutex.c
> +++ b/kernel/locking/mutex.c
> @@ -403,9 +403,9 @@ __mutex_lock_common(struct mutex *lock,
>  	if (!mutex_can_spin_on_owner(lock))
>  		goto slowpath;
>  
> +	mcs_spin_lock(&lock->mcs_lock);

Where did the mcs node go? :)