xchg_u8            49 arch/sh/include/asm/cmpxchg-grb.h static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
xchg_u8            29 arch/sh/include/asm/cmpxchg-irq.h static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
xchg_u8            45 arch/sh/include/asm/cmpxchg-xchg.h static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)