RWSEM_WAITING_BIAS   56 arch/x86/include/asm/rwsem.h #define RWSEM_WAITING_BIAS		(-RWSEM_ACTIVE_MASK-1)
RWSEM_WAITING_BIAS   27 include/asm-generic/rwsem.h #define RWSEM_WAITING_BIAS		(-RWSEM_ACTIVE_MASK-1)