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KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMP 

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>
This commit is contained in:
Xiantao Zhang 2008-11-08 15:46:59 +08:00 committed by Avi Kivity
parent 928d4bf747
commit c60ff51eb2
1 changed files with 5 additions and 0 deletions
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5
arch/ia64/kvm/vcpu.h
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@ -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);