RWSEM_READER_MASK 164 kernel/locking/rwsem.c #define RWSEM_LOCK_MASK (RWSEM_WRITER_MASK|RWSEM_READER_MASK) RWSEM_READER_MASK 1192 kernel/locking/rwsem.c rwsem_mark_wake(sem, (count & RWSEM_READER_MASK)