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Date: Thu, 02 Dec 2010 15:53:40 -0600
From: Christoph Lameter <cl@linux.com>
To: akpm@linux-foundation.org
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: linux-kernel@vger.kernel.org
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Tejun Heo <tj@kernel.org>
Subject: [rfc: cpuops adv V1 0/8] Cmpxchg and xchg support for cpu ops
Sender: linux-kernel-owner@vger.kernel.org
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This is a patchset on top of the thiscpuops upgrade patchset. It
adds cmpxchg and xchg support and uses that to improve various
kernel subsystem.

For vm statistics we can avoid interrupt enable/disable which reduces
the latencies of the vm counter updates to a fraction.

The slub fastpaths and slowpaths can decrease their cycle count. In
particular it is possible to improve the performance of the free slowpath.