Defined in 4 files as a macro:
- arch/riscv/include/asm/cmpxchg.h, line 294 (as a macro)
- include/asm-generic/atomic-instrumented.h, line 1698 (as a macro)
- include/linux/atomic-fallback.h, line 35 (as a macro)
- include/linux/atomic-fallback.h, line 44 (as a macro)