autofs4: kill ->size in autofs_info

It's used only to pass the length of symlink body to
autofs4_get_inode() in autofs4_dir_symlink(). We can
bloody well set inode->i_size in autofs4_dir_symlink()
directly and be done with that.

Acked-by: Ian Kent <[e-mail]>
Signed-off-by: Al Viro <[e-mail]>

fs/autofs4/autofs_i.h

···
 
 	uid_t uid;
 	gid_t gid;
-
-	size_t	size;
 };
 
 #define AUTOFS_INF_EXPIRING	(1<<0) /* dentry is in the process of expiring */

fs/autofs4/inode.c

···
 	if (!reinit) {
 		ino->flags = 0;
 		ino->dentry = NULL;
-		ino->size = 0;
 		INIT_LIST_HEAD(&ino->active);
 		ino->active_count = 0;
 		INIT_LIST_HEAD(&ino->expiring);
···
 		inode->i_op = &autofs4_dir_inode_operations;
 		inode->i_fop = &autofs4_dir_operations;
 	} else if (S_ISLNK(mode)) {
-		inode->i_size = inf->size;
 		inode->i_op = &autofs4_symlink_inode_operations;
 	}
 

fs/autofs4/root.c

···
 	struct autofs_info *ino = autofs4_dentry_ino(dentry);
 	struct autofs_info *p_ino;
 	struct inode *inode;
+	size_t size = strlen(symname);
 	char *cp;
 
 	DPRINTK("%s <- %.*s", symname,
···
 
 	autofs4_del_active(dentry);
 
-	ino->size = strlen(symname);
-	cp = kmalloc(ino->size + 1, GFP_KERNEL);
+	cp = kmalloc(size + 1, GFP_KERNEL);
 	if (!cp) {
 		if (!dentry->d_fsdata)
 			kfree(ino);
···
 		return -ENOMEM;
 	}
 	inode->i_private = cp;
+	inode->i_size = size;
 	d_add(dentry, inode);
 
 	dentry->d_fsdata = ino;