[PATCH] proc: modify proc_pident_lookup to be completely table driven

Currently proc_pident_lookup gets the names and types from a table and then
has a huge switch statement to get the inode and file operations it needs.
That is silly and is becoming increasingly hard to maintain so I just put all
of the information in the table.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/proc_fs.h

@@ -244,13 +244,15 @@ static inline void kclist_add(struct kcore_list *new, void *addr, size_t size)
 extern void kclist_add(struct kcore_list *, void *, size_t);
 #endif
 
+union proc_op {
+	int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
+	int (*proc_read)(struct task_struct *task, char *page);
+};
+
 struct proc_inode {
 	struct pid *pid;
 	int fd;
-	union {
-		int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
-		int (*proc_read)(struct task_struct *task, char *page);
-	} op;
+	union proc_op op;
 	struct proc_dir_entry *pde;
 	struct inode vfs_inode;
 };