diff --git a/src/block.rs b/src/block.rs
index 5e677ec7ec..a429ce089f 100644
--- a/src/block.rs
+++ b/src/block.rs
@@ -169,12 +169,7 @@ unsafe impl<T> BlockTrait for BlockList<T> {
 
 impl<T> BlockList<T> {
     pub fn is_empty(&self) -> bool {
-        for ptr in self.ptrs.iter() {
-            if !ptr.is_null() {
-                return false;
-            }
-        }
-        true
+        self.ptrs.iter().all(|ptr| ptr.is_null())
     }
 }
 
diff --git a/src/dir.rs b/src/dir.rs
index f9a23c1c7d..d65a5d9f4a 100644
--- a/src/dir.rs
+++ b/src/dir.rs
@@ -68,12 +68,7 @@ unsafe impl BlockTrait for DirList {
 
 impl DirList {
     pub fn is_empty(&self) -> bool {
-        for entry in self.entries.iter() {
-            if !entry.node_ptr().is_null() {
-                return false;
-            }
-        }
-        true
+        self.entries.iter().all(|entry| entry.node_ptr().is_null())
     }
 }