From: Michael S. Tsirkin <mst@redhat.com>
Date: Mon, 29 Jun 2009 19:24:07 +0000 (+0300)
Subject: KVM: document locking for kvm_io_device_ops
X-Git-Tag: v2.6.32-rc1~693^2~113
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=69fa2d78653918d200220ca62d44715827e6d617;p=linux.git

KVM: document locking for kvm_io_device_ops

slots_lock is taken everywhere when device ops are called.
Document this as we will use this to rework locking for io.

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

diff --git a/virt/kvm/iodev.h b/virt/kvm/iodev.h
index 2c67f5acd6db..06e38b23fa61 100644
--- a/virt/kvm/iodev.h
+++ b/virt/kvm/iodev.h
@@ -20,6 +20,9 @@
 
 struct kvm_io_device;
 
+/**
+ * kvm_io_device_ops are called under kvm slots_lock.
+ **/
 struct kvm_io_device_ops {
 	void (*read)(struct kvm_io_device *this,
 		     gpa_t addr,