helper functions for extent data structure access

btrfs/src/structs.rs

@@ -376,6 +376,28 @@ pub struct ExtentData2 {
     num_bytes: U64<LE>,
 }
 
+impl ExtentData2 {
+    pub fn extent_data1(&self) -> &ExtentData1 {
+        &self.header
+    }
+
+    pub fn address(&self) -> u64 {
+        self.address.get()
+    }
+
+    pub fn size(&self) -> u64 {
+        self.size.get()
+    }
+
+    pub fn offset(&self) -> u64 {
+        self.offset.get()
+    }
+
+    pub fn num_bytes(&self) -> u64 {
+        self.num_bytes.get()
+    }
+}
+
 #[repr(C, packed(1))]
 #[derive(Debug, Clone, Copy, FromBytes, AsBytes)]
 pub struct INodeRef {

btrfs/src/v2/file.rs

@@ -5,7 +5,7 @@ use alloc::vec::Vec;
 
 use crate::structs::KnownObjectId;
 
-#[derive(Clone)]
+#[derive(Clone, PartialEq, Eq)]
 pub struct INode {
     pub id: u64,
     pub(crate) path: Vec<Vec<u8>>,