Reduce kmalloc() traffic in directory iteration.

Pass the file name in a stack-allocated buffer instead of using an AK::String
when iterating directories. This dramatically reduces the amount of cycles
spent traversing the filesystem.

1 files changed, 3 insertions, 3 deletions

diff --git a/VirtualFileSystem/SyntheticFileSystem.cpp b/VirtualFileSystem/SyntheticFileSystem.cpp
index dd1c0c0de3..676aff6b80 100644
--- a/VirtualFileSystem/SyntheticFileSystem.cpp
+++ b/VirtualFileSystem/SyntheticFileSystem.cpp
@@ -147,11 +147,11 @@ bool SyntheticFileSystem::enumerateDirectoryInode(InodeIdentifier inode, Functio
     if (!synInode.metadata.isDirectory())
         return false;
 
-    callback({ ".", synInode.metadata.inode });
-    callback({ "..", synInode.parent });
+    callback({ ".", 1, synInode.metadata.inode, 2 });
+    callback({ "..", 2, synInode.parent, 2 });
 
     for (auto& child : synInode.children)
-        callback({ child->name, child->metadata.inode });
+        callback({ child->name.characters(), child->name.length(), child->metadata.inode, child->metadata.isDirectory() ? (byte)2 : (byte)1 });
     return true;
 }