From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Date: Mon, 4 Mar 2013 18:02:27 +0000 (+0530)
Subject: kvm: Iterate over only vcpus that are preempted
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~32^2~104
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7bc7ae25b1438bb9fe1f176b951d758789847640;p=pandora-kernel.git

kvm: Iterate over only vcpus that are preempted

This helps in filtering out the eligible candidates further and
thus potentially helps in quickly allowing preempted lockholders to run.
Note that if a vcpu was spinning during preemption we filter them
by checking whether they are preempted due to pause loop exit.

Reviewed-by: Chegu Vinod <chegu_vinod@hp.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
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