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Date:	Thu, 02 Dec 2010 15:53:40 -0600
From:	Christoph Lameter <>
Cc:	Tejun Heo <>
Subject: [rfc: cpuops adv V1 0/8] Cmpxchg and xchg support for cpu ops

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.

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