procfs: new helper - PDE_DATA(inode)
The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data. Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/net/atm/proc.c b/net/atm/proc.c
index 6ac35ff..bbb6461 100644
--- a/net/atm/proc.c
+++ b/net/atm/proc.c
@@ -385,7 +385,7 @@
page = get_zeroed_page(GFP_KERNEL);
if (!page)
return -ENOMEM;
- dev = PDE(file_inode(file))->data;
+ dev = PDE_DATA(file_inode(file));
if (!dev->ops->proc_read)
length = -EINVAL;
else {