pipe_lock_nested   71 fs/pipe.c      	pipe_lock_nested(pipe, I_MUTEX_PARENT);
pipe_lock_nested   98 fs/pipe.c      		pipe_lock_nested(pipe1, I_MUTEX_PARENT);
pipe_lock_nested   99 fs/pipe.c      		pipe_lock_nested(pipe2, I_MUTEX_CHILD);
pipe_lock_nested  101 fs/pipe.c      		pipe_lock_nested(pipe2, I_MUTEX_PARENT);
pipe_lock_nested  102 fs/pipe.c      		pipe_lock_nested(pipe1, I_MUTEX_CHILD);