Lines Matching refs:mr_lock
24 struct rw_semaphore mr_lock;
32 do { (mrp)->mr_writer = 0; init_rwsem(&(mrp)->mr_lock); } while (0)
35 do { init_rwsem(&(mrp)->mr_lock); } while (0)
43 down_read_nested(&mrp->mr_lock, subclass);
48 down_write_nested(&mrp->mr_lock, subclass);
56 return down_read_trylock(&mrp->mr_lock);
61 if (!down_write_trylock(&mrp->mr_lock))
74 up_write(&mrp->mr_lock);
79 up_read(&mrp->mr_lock);
87 downgrade_write(&mrp->mr_lock);