openpromfs: switch to ->free_inode()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/openpromfs/inode.c

@@ -336,17 +336,11 @@ static struct inode *openprom_alloc_inode(struct super_block *sb)
 	return &oi->vfs_inode;
 }
 
-static void openprom_i_callback(struct rcu_head *head)
+static void openprom_free_inode(struct inode *inode)
 {
-	struct inode *inode = container_of(head, struct inode, i_rcu);
 	kmem_cache_free(op_inode_cachep, OP_I(inode));
 }
 
-static void openprom_destroy_inode(struct inode *inode)
-{
-	call_rcu(&inode->i_rcu, openprom_i_callback);
-}
-
 static struct inode *openprom_iget(struct super_block *sb, ino_t ino)
 {
 	struct inode *inode;
@@ -375,7 +369,7 @@ static int openprom_remount(struct super_block *sb, int *flags, char *data)
 
 static const struct super_operations openprom_sops = {
 	.alloc_inode	= openprom_alloc_inode,
-	.destroy_inode	= openprom_destroy_inode,
+	.free_inode	= openprom_free_inode,
 	.statfs		= simple_statfs,
 	.remount_fs	= openprom_remount,
 };