[PATCH] constify pipe_buf_operations

- pipe/splice should use const pipe_buf_operations and file_operations

- struct pipe_inode_info has an unused field "start" : get rid of it.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index ea4f7cd7bfd8..cc902d242c41 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -12,7 +12,7 @@
 struct pipe_buffer {
         struct page *page;
         unsigned int offset, len;
-        struct pipe_buf_operations *ops;
+        const struct pipe_buf_operations *ops;
         unsigned int flags;
 };
 
@@ -43,7 +43,6 @@ struct pipe_inode_info {
         unsigned int nrbufs, curbuf;
         struct pipe_buffer bufs[PIPE_BUFFERS];
         struct page *tmp_page;
-        unsigned int start;
         unsigned int readers;
         unsigned int writers;
         unsigned int waiting_writers;