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)