Defined in 6 files as a macro:
- sys/arm/include/atomic-v4.h, line 554 (as a macro)
- sys/arm64/include/atomic.h, line 568 (as a macro)
- sys/mips/include/atomic.h, line 699 (as a macro)
- sys/mips/include/atomic.h, line 750 (as a macro)
- sys/riscv/include/atomic.h, line 547 (as a macro)
- sys/sys/_cscan_atomic.h, line 214 (as a macro)