Merge branches 'x86/alternatives', 'x86/cleanups', 'x86/commandline', 'x86/crashdump...

[linux-2.6-omap-h63xx.git] / include / asm-x86 / spinlock.h

diff --git a/include/asm-x86/spinlock.h b/include/asm-x86/spinlock.h
index 0b4d59a93d2328500d91e26268298e1468456c25..93adae338ac64625ab1c1ec63634edd8c3d8dcd3 100644 (file)
--- a/include/asm-x86/spinlock.h
+++ b/include/asm-x86/spinlock.h
@@ -1,5 +1,5 @@
-#ifndef _X86_SPINLOCK_H_
-#define _X86_SPINLOCK_H_
+#ifndef ASM_X86__SPINLOCK_H
+#define ASM_X86__SPINLOCK_H
 
 #include <asm/atomic.h>
 #include <asm/rwlock.h>
@@ -65,7 +65,7 @@ static inline int __ticket_spin_is_contended(raw_spinlock_t *lock)
 {
        int tmp = ACCESS_ONCE(lock->slock);
 
-       return (((tmp >> 8) & 0xff) - (tmp & 0xff)) > 1;
+       return (((tmp >> 8) - tmp) & 0xff) > 1;
 }
 
 static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock)
@@ -127,7 +127,7 @@ static inline int __ticket_spin_is_contended(raw_spinlock_t *lock)
 {
        int tmp = ACCESS_ONCE(lock->slock);
 
-       return (((tmp >> 16) & 0xffff) - (tmp & 0xffff)) > 1;
+       return (((tmp >> 16) - tmp) & 0xffff) > 1;
 }
 
 static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock)
@@ -366,4 +366,4 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
 #define _raw_read_relax(lock)  cpu_relax()
 #define _raw_write_relax(lock) cpu_relax()
 
-#endif
+#endif /* ASM_X86__SPINLOCK_H */