Fix lost updates, because of writing into copies instead of references

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86_64/include/arch/memory/paging/page_mapper.hpp b/arch/x86_64/include/arch/memory/paging/page_mapper.hpp
index 4edcea9..d852fbc 100644
--- a/arch/x86_64/include/arch/memory/paging/page_mapper.hpp
+++ b/arch/x86_64/include/arch/memory/paging/page_mapper.hpp
@@ -79,7 +79,7 @@ namespace teachos::arch::memory::paging
       current_handle = current_handle.next_table_or_create(allocator, page.get_level_index(level));
     }
 
-    auto level1_entry = current_handle[page.get_level_index(page_table_handle::LEVEL1)];
+    auto & level1_entry = current_handle[page.get_level_index(page_table_handle::LEVEL1)];
     arch::exception_handling::assert(!level1_entry.contains_flags(entry::HUGE_PAGE),
                                      "[Page Mapper] Unable to map huge pages");
     arch::exception_handling::assert(level1_entry.is_unused(), "[Page Mapper] Page table entry is already used");
@@ -141,7 +141,7 @@ namespace teachos::arch::memory::paging
       current_handle = next_handle.value();
     }
 
-    auto level1_entry = current_handle[page.get_level_index(page_table_handle::LEVEL1)];
+    auto & level1_entry = current_handle[page.get_level_index(page_table_handle::LEVEL1)];
     auto const level1_frame = level1_entry.calculate_pointed_to_frame();
     exception_handling::assert(level1_frame.has_value(),
                                "[Page Mapper] Attempted to unmap page, which has not been mapped previously");