Defined in 4 files as a macro:
- arch/openrisc/include/asm/spinlock.h, line 27 (as a macro)
- arch/powerpc/include/asm/spinlock.h, line 314 (as a macro)
- arch/s390/include/asm/spinlock.h, line 107 (as a macro)
- kernel/locking/spinlock.c, line 52 (as a macro)