KVM: ia64: fix build breakage due to host spinlock change
Len Brown pointed out that allmodconfig is broken for
ia64 because of:
arch/ia64/kvm/vmm.c: In function 'vmm_spin_unlock':
arch/ia64/kvm/vmm.c:70: error: 'spinlock_t' has no member named 'raw_lock'
KVM has it's own spinlock routines. It should not depend on the base kernel
spinlock_t type (which changed when ia64 switched to ticket locks). Define
its own vmm_spinlock_t type.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/ia64/kvm/vcpu.h b/arch/ia64/kvm/vcpu.h
index 360724d..988911b 100644
--- a/arch/ia64/kvm/vcpu.h
+++ b/arch/ia64/kvm/vcpu.h
@@ -388,6 +388,9 @@
#define _vmm_raw_spin_lock(x) do {}while(0)
#define _vmm_raw_spin_unlock(x) do {}while(0)
#else
+typedef struct {
+ volatile unsigned int lock;
+} vmm_spinlock_t;
#define _vmm_raw_spin_lock(x) \
do { \
__u32 *ia64_spinlock_ptr = (__u32 *) (x); \
@@ -405,12 +408,12 @@
#define _vmm_raw_spin_unlock(x) \
do { barrier(); \
- ((spinlock_t *)x)->raw_lock.lock = 0; } \
+ ((vmm_spinlock_t *)x)->lock = 0; } \
while (0)
#endif
-void vmm_spin_lock(spinlock_t *lock);
-void vmm_spin_unlock(spinlock_t *lock);
+void vmm_spin_lock(vmm_spinlock_t *lock);
+void vmm_spin_unlock(vmm_spinlock_t *lock);
enum {
I_TLB = 1,
D_TLB = 2