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CPUIDLE: shorten hpet spin_lock holding time
authorKeir Fraser <keir.fraser@citrix.com>
Tue, 4 May 2010 11:52:48 +0000 (12:52 +0100)
committerKeir Fraser <keir.fraser@citrix.com>
Tue, 4 May 2010 11:52:48 +0000 (12:52 +0100)
commitdaa12fe8bf360b1aebeba427393788b3f3d3a786
tree865064ea218b02f5f20ad1f5fbf1000d80032e05tree | snapshot
parent95eb3a2278eb6e0cf77de295dd7079b11005bd43commit | diff
CPUIDLE: shorten hpet spin_lock holding time

Try to reduce spin_lock overhead for deep C state entry/exit. This
will benefit systems with a lot of cpus which need the hpet broadcast
to wakeup from deep C state.

Signed-off-by: Wei Gang <gang.wei@intel.com>
xen/arch/x86/hpet.c diff | blob | history
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