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authorJan Kiszka <jan.kiszka@siemens.com>2012-03-14 11:02:11 +0100
committerAvi Kivity <avi@redhat.com>2012-03-20 12:41:24 +0200
commitcf9eeac46350b8b43730b7dc5e999757bed089a4 (patch)
treea71645c281a36c080f58bf660a95c176070e4f83 /include
parent02626b6af5d2bc62db3bb85fc2891b2725535d44 (diff)
downloadop-kernel-dev-cf9eeac46350b8b43730b7dc5e999757bed089a4.zip
op-kernel-dev-cf9eeac46350b8b43730b7dc5e999757bed089a4.tar.gz
KVM: Convert intx_mask_lock to spin lock
As kvm_notify_acked_irq calls kvm_assigned_dev_ack_irq under rcu_read_lock, we cannot use a mutex in the latter function. Switch to a spin lock to address this. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/kvm_host.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ec171c1..40bb1c6 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -556,7 +556,7 @@ struct kvm_assigned_dev_kernel {
struct pci_dev *dev;
struct kvm *kvm;
spinlock_t intx_lock;
- struct mutex intx_mask_lock;
+ spinlock_t intx_mask_lock;
char irq_name[32];
struct pci_saved_state *pci_saved_state;
};
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