ext2: don't try freeing fastlink "blocks"

kernel/driver/fs/ext2/src/inode/mod.rs

@@ -1,6 +1,7 @@
 use core::cmp::Ordering;
 
 use libk::error::Error;
+use yggdrasil_abi::io::FileType;
 
 use crate::{
     data::{FsReadonlyFeatures, DIRECT_BLOCK_COUNT},
@@ -244,8 +245,23 @@ impl Inode {
 
         // TODO check max inode size
 
-        let new_blocks = size.div_ceil(fs.block_size as u64);
+        let is_symlink = self
-        let old_blocks = self.size(fs).div_ceil(fs.block_size as u64);
+            .mode
+            .node_type()
+            .map(|ty| ty == FileType::Symlink)
+            .unwrap_or(false);
+
+        let new_blocks = if is_symlink && size < 60 {
+            0
+        } else {
+            size.div_ceil(fs.block_size as u64)
+        };
+        // TODO check size_upper as well?
+        let old_blocks = if is_symlink && self.size_lower < 60 {
+            0
+        } else {
+            self.size(fs).div_ceil(fs.block_size as u64)
+        };
 
         if new_blocks as usize
             > DIRECT_BLOCK_COUNT