memory allocation, whereas PIPE_BUF makes atomicity guarantees. */
#define PIPE_SIZE PAGE_SIZE
-#define PIPE_MUTEX(inode) (&(inode).i_mutex)
-#define PIPE_WAIT(inode) (&(inode).i_pipe->wait)
-#define PIPE_READERS(inode) ((inode).i_pipe->readers)
-#define PIPE_WRITERS(inode) ((inode).i_pipe->writers)
-#define PIPE_WAITING_WRITERS(inode) ((inode).i_pipe->waiting_writers)
-#define PIPE_RCOUNTER(inode) ((inode).i_pipe->r_counter)
-#define PIPE_WCOUNTER(inode) ((inode).i_pipe->w_counter)
-#define PIPE_FASYNC_READERS(inode) (&((inode).i_pipe->fasync_readers))
-#define PIPE_FASYNC_WRITERS(inode) (&((inode).i_pipe->fasync_writers))
-
/* Drop the inode semaphore and wait for a pipe event, atomically */
void pipe_wait(struct pipe_inode_info *pipe);