centos man page for struct_pipe_inode_info

STRUCT 
PIPE_INODE_IN(9) 					     pipes API						   STRUCT PIPE_INODE_IN(9)

NAME
       struct_pipe_inode_info - a linux kernel pipe

SYNOPSIS
       struct pipe_inode_info {
	 struct mutex mutex;
	 wait_queue_head_t wait;
	 unsigned int nrbufs;
	 unsigned int curbuf;
	 unsigned int buffers;
	 unsigned int readers;
	 unsigned int writers;
	 unsigned int files;
	 unsigned int waiting_writers;
	 unsigned int r_counter;
	 unsigned int w_counter;
	 struct page * tmp_page;
	 struct fasync_struct * fasync_readers;
	 struct fasync_struct * fasync_writers;
	 struct pipe_buffer * bufs;
       };

MEMBERS
       mutex
	   mutex protecting the whole thing

       wait
	   reader/writer wait point in case of empty/full pipe

       nrbufs
	   the number of non-empty pipe buffers in this pipe

       curbuf
	   the current pipe buffer entry

       buffers
	   total number of buffers (should be a power of 2)

       readers
	   number of current readers of this pipe

       writers
	   number of current writers of this pipe

       files
	   number of struct file refering this pipe (protected by ->i_lock)

       waiting_writers
	   number of writers blocked waiting for room

       r_counter
	   reader counter

       w_counter
	   writer counter

       tmp_page
	   cached released page

       fasync_readers
	   reader side fasync

       fasync_writers
	   writer side fasync

       bufs
	   the circular array of pipe buffers

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   STRUCT PIPE_INODE_IN(9)