KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMP
authorXiantao Zhang <xiantao.zhang@intel.com>
Sat, 8 Nov 2008 07:46:59 +0000 (15:46 +0800)
committerAvi Kivity <avi@redhat.com>
Tue, 11 Nov 2008 19:01:30 +0000 (21:01 +0200)
In the case of !CONFIG_SMP, raw_spinlock_t is empty and the spinlock functions
don't build.  Fix by defining spinlock functions for the uniprocessor case.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/ia64/kvm/vcpu.h

index 341e3fee280cd502cbb270aaea00218548fcdbff..e9b2a4e121c052636745927e40964417c5955812 100644 (file)
@@ -384,6 +384,10 @@ static inline u64 __gpfn_is_io(u64 gpfn)
 #define MODE_IND(psr)  \
        (((psr).it << 2) + ((psr).dt << 1) + (psr).rt)
 
+#ifndef CONFIG_SMP
+#define _vmm_raw_spin_lock(x)   do {}while(0)
+#define _vmm_raw_spin_unlock(x) do {}while(0)
+#else
 #define _vmm_raw_spin_lock(x)                                          \
        do {                                                            \
                __u32 *ia64_spinlock_ptr = (__u32 *) (x);               \
@@ -403,6 +407,7 @@ static inline u64 __gpfn_is_io(u64 gpfn)
        do { barrier();                         \
                ((spinlock_t *)x)->raw_lock.lock = 0; } \
 while (0)
+#endif
 
 void vmm_spin_lock(spinlock_t *lock);
 void vmm_spin_unlock(spinlock_t *lock);