1 files changed, 21 insertions, 13 deletions

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 7df92d237cb8..72bc53683965 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -28,7 +28,7 @@
 #include <linux/sunrpc/rpc_pipe_fs.h>
 #include <linux/sunrpc/cache.h>
 
-static struct vfsmount *rpc_mount __read_mostly;
+static struct vfsmount *rpc_mnt __read_mostly;
 static int rpc_mount_count;
 
 static struct file_system_type rpc_pipe_fs_type;
@@ -162,11 +162,19 @@ rpc_alloc_inode(struct super_block *sb)
 }
 
 static void
-rpc_destroy_inode(struct inode *inode)
+rpc_i_callback(struct rcu_head *head)
 {
+	struct inode *inode = container_of(head, struct inode, i_rcu);
+	INIT_LIST_HEAD(&inode->i_dentry);
 	kmem_cache_free(rpc_inode_cachep, RPC_I(inode));
 }
 
+static void
+rpc_destroy_inode(struct inode *inode)
+{
+	call_rcu(&inode->i_rcu, rpc_i_callback);
+}
+
 static int
 rpc_pipe_open(struct inode *inode, struct file *filp)
 {
@@ -417,20 +425,20 @@ struct vfsmount *rpc_get_mount(void)
 {
 	int err;
 
-	err = simple_pin_fs(&rpc_pipe_fs_type, &rpc_mount, &rpc_mount_count);
+	err = simple_pin_fs(&rpc_pipe_fs_type, &rpc_mnt, &rpc_mount_count);
 	if (err != 0)
 		return ERR_PTR(err);
-	return rpc_mount;
+	return rpc_mnt;
 }
 EXPORT_SYMBOL_GPL(rpc_get_mount);
 
 void rpc_put_mount(void)
 {
-	simple_release_fs(&rpc_mount, &rpc_mount_count);
+	simple_release_fs(&rpc_mnt, &rpc_mount_count);
 }
 EXPORT_SYMBOL_GPL(rpc_put_mount);
 
-static int rpc_delete_dentry(struct dentry *dentry)
+static int rpc_delete_dentry(const struct dentry *dentry)
 {
 	return 1;
 }
@@ -466,7 +474,7 @@ static int __rpc_create_common(struct inode *dir, struct dentry *dentry,
 {
 	struct inode *inode;
 
-	BUG_ON(!d_unhashed(dentry));
+	d_drop(dentry);
 	inode = rpc_get_inode(dir->i_sb, mode);
 	if (!inode)
 		goto out_err;
@@ -583,7 +591,7 @@ static struct dentry *__rpc_lookup_create(struct dentry *parent,
 		}
 	}
 	if (!dentry->d_inode)
-		dentry->d_op = &rpc_dentry_operations;
+		d_set_d_op(dentry, &rpc_dentry_operations);
 out_err:
 	return dentry;
 }
@@ -1018,17 +1026,17 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 }
 
-static int
-rpc_get_sb(struct file_system_type *fs_type,
-		int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *
+rpc_mount(struct file_system_type *fs_type,
+		int flags, const char *dev_name, void *data)
 {
-	return get_sb_single(fs_type, flags, data, rpc_fill_super, mnt);
+	return mount_single(fs_type, flags, data, rpc_fill_super);
 }
 
 static struct file_system_type rpc_pipe_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "rpc_pipefs",
-	.get_sb		= rpc_get_sb,
+	.mount		= rpc_mount,
 	.kill_sb	= kill_litter_super,
 };