Date: Wed, 2 Oct 2013 17:19:37 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Waiman Long <Waiman.Long@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Arnd Bergmann <arnd@arndb.de>,
        linux-arch@vger.kernel.org, x86@kernel.org,
        linux-kernel@vger.kernel.org, Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michel Lespinasse <walken@google.com>,
        Andi Kleen <andi@firstfloor.org>, Rik van Riel <riel@redhat.com>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
        George Spelvin <linux@horizon.com>,
        Tim Chen <tim.c.chen@linux.intel.com>,
        "Chandramouleeswaran, Aswin" <aswin@hp.com>,
        "Norton, Scott J" <scott.norton@hp.com>
Subject: Re: [PATCH v4 0/3] qrwlock: Introducing a queue read/write lock
 implementation
Message-ID: <20131002151937.GU3081@twins.programming.kicks-ass.net>
References: <1380722946-30468-1-git-send-email-Waiman.Long@hp.com>
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On Wed, Oct 02, 2013 at 10:09:03AM -0400, Waiman Long wrote:
> v3->v4:
>  - Optimize the fast path with better cold cache behavior and
>    performance.
>  - Removing some testing code.
>  - Make x86 use queue rwlock with no user configuration.

>  arch/x86/Kconfig                      |    1 +
>  arch/x86/include/asm/spinlock.h       |    2 +
>  arch/x86/include/asm/spinlock_types.h |    4 +
>  include/asm-generic/qrwlock.h         |  256 +++++++++++++++++++++++++++++++++
>  include/linux/rwlock.h                |   15 ++
>  include/linux/rwlock_types.h          |   13 ++
>  kernel/Kconfig.locks                  |    7 +
>  lib/Makefile                          |    1 +
>  lib/qrwlock.c                         |  247 +++++++++++++++++++++++++++++++
>  lib/spinlock_debug.c                  |   19 +++
>  10 files changed, 565 insertions(+), 0 deletions(-)
>  create mode 100644 include/asm-generic/qrwlock.h
>  create mode 100644 lib/qrwlock.c


Where's the ---- for removing the old rwlock from x86?
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