_xchg             160 arch/arc/include/asm/cmpxchg.h 	old_val = _xchg(ptr, with);	\
_xchg             167 arch/arc/include/asm/cmpxchg.h #define xchg(ptr, with)  _xchg(ptr, with)
_xchg             264 arch/riscv/include/asm/atomic.h c_t atomic##prefix##_xchg(atomic##prefix##_t *v, c_t n)			\