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#ifndef __SPARC_SPINLOCK_TYPES_H #define __SPARC_SPINLOCK_TYPES_H typedef struct { volatile unsigned char lock; } arch_spinlock_t; #define __ARCH_SPIN_LOCK_UNLOCKED { 0 } typedef struct { volatile unsigned int lock; } arch_rwlock_t; #define __ARCH_RW_LOCK_UNLOCKED { 0 } #endif