From: Michael S. Tsirkin <mst@redhat.com>
Date: Sun, 6 Mar 2011 11:03:26 +0000 (+0200)
Subject: KVM: improve comment on rcu use in irqfd_deassign
X-Git-Tag: v2.6.39-rc1~436^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8ce057eafd49da6a7afe7791bd84163f65f6132;p=pandora-kernel.git

KVM: improve comment on rcu use in irqfd_deassign

The RCU use in kvm_irqfd_deassign is tricky: we have rcu_assign_pointer
but no synchronize_rcu: synchronize_rcu is done by kvm_irq_routing_update
which we share a spinlock with.

Fix up a comment in an attempt to make this clearer.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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