fix inode write_back, fix remove

1 files changed, 9 insertions, 7 deletions

diff --git a/ayafs-core/src/lib.rs b/ayafs-core/src/lib.rs
index db3ac28..d73619b 100644
--- a/ayafs-core/src/lib.rs
+++ b/ayafs-core/src/lib.rs
@@ -218,13 +218,15 @@ impl AyaFS {
 
         while let Some((inode_index, dir_entry_map)) = self.dir_entry_map.pop_lru() {
             debug!("writing back direntry map for inode {}", inode_index);
-            let mut inode = self.get_inode(inode_index).unwrap().clone();
-            self.write_back_direntry(
-                inode_index,
-                &mut inode,
-                dir_entry_map,
-            ).unwrap();
-            self.update_inode(inode_index, inode);
+            if let Some(inode) = self.get_inode(inode_index) {
+                let mut inode = inode.clone();
+                self.write_back_direntry(
+                    inode_index,
+                    &mut inode,
+                    dir_entry_map,
+                ).unwrap();
+                self.update_inode(inode_index, inode);
+            }
         } // dir entry 的 write back 是写回到 block / inode cache 里, 所以要在前面
 
         debug!("data_bitmap stopping at: {:?}", self.data_bitmap.peek());