proc: Make the PROC_I() and PDE() macros internal to procfs

Make the PROC_I() and PDE() macros internal to procfs.  This means making
PDE_DATA() out of line.  This could be made more optimal by storing
PDE()->data into inode->i_private.

Also provide a __PDE_DATA() that is inline and internal to procfs.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 7 insertions, 1 deletions

diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index d9631d9b7aff..a2596afffae6 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -165,7 +165,7 @@ void proc_free_inum(unsigned int inum)
 
 static void *proc_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-        nd_set_link(nd, PDE_DATA(dentry->d_inode));
+        nd_set_link(nd, __PDE_DATA(dentry->d_inode));
         return NULL;
 }
 
@@ -631,3 +631,9 @@ void proc_remove(struct proc_dir_entry *de)
                 remove_proc_subtree(de->name, de->parent);
 }
 EXPORT_SYMBOL(proc_remove);
+
+void *PDE_DATA(const struct inode *inode)
+{
+        return __PDE_DATA(inode);
+}
+EXPORT_SYMBOL(PDE_DATA);