1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index 445796945ac9..77257c92155a 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -30,6 +30,7 @@ struct pipe_buffer {
  *      struct pipe_inode_info - a linux kernel pipe
  *      @wait: reader/writer wait point in case of empty/full pipe
  *      @nrbufs: the number of non-empty pipe buffers in this pipe
+ *      @buffers: total number of buffers (should be a power of 2)
  *      @curbuf: the current pipe buffer entry
  *      @tmp_page: cached released page
  *      @readers: number of current readers of this pipe
@@ -160,5 +161,6 @@ void generic_pipe_buf_release(struct pipe_inode_info *, struct pipe_buffer *);
 
 /* for F_SETPIPE_SZ and F_GETPIPE_SZ */
 long pipe_fcntl(struct file *, unsigned int, unsigned long arg);
+struct pipe_inode_info *get_pipe_info(struct file *file);
 
 #endif