btrfs: add stub write function

Only does the parameter error checking. Change-Id: Idee4a8e8e183d45c4a14236c32ff40e52ccb2555 Reviewed-on: https://review.haiku-os.org/c/haiku/+/1534 Reviewed-by: Adrien Destugues <[email protected]>
2020-09-19 15:47:20 +00:00
parent 5986ba8cb1
commit ba6665a3dd
1 changed files with 22 additions and 1 deletions
@@ -1,4 +1,5 @@
 /*
+ * Copyright 2019, Bharathi Ramana Joshi, [email protected]
 * Copyright 2019, Les De Ridder, [email protected]
 * Copyright 2017, Chế Vũ Gia Hy, [email protected].
 * Copyright 2011, Jérôme Duval, [email protected].
@@ -532,6 +533,26 @@ btrfs_open(fs_volume* /*_volume*/, fs_vnode* _node, int openMode,
 }


+status_t
+btrfs_write(fs_volume* _volume, fs_vnode* _node, void* _cookie, off_t pos,
+		const void* buffer, size_t* _length)
+{
+	Volume* volume = (Volume*)_volume->private_volume;
+	Inode* inode = (Inode*)_node->private_node;
+
+	if (volume->IsReadOnly())
+		return B_READ_ONLY_DEVICE;
+
+	if (pos < 0)
+		return B_BAD_VALUE;
+
+	if (!inode->IsFile())
+		return B_BAD_VALUE;
+
+	return B_NOT_SUPPORTED;
+}
+
+
 static status_t
 btrfs_read(fs_volume* _volume, fs_vnode* _node, void* _cookie, off_t pos,
 	void* buffer, size_t* _length)
@@ -1146,7 +1167,7 @@ fs_vnode_ops gBtrfsVnodeOps = {
 	&btrfs_close,
 	&btrfs_free_cookie,
 	&btrfs_read,
-	NULL,	//	fs_write,
+	&btrfs_write,

 	/* directory operations */
 	&btrfs_create_dir,