Kernel: Implement copy-on-write memory for file backed mmaps

2024-09-11 19:32:42 +03:00
parent 4006a04817
commit c77ad5fb34
15 changed files with 217 additions and 208 deletions
--- a/kernel/include/kernel/Memory/MemoryBackedRegion.h
+++ b/kernel/include/kernel/Memory/MemoryBackedRegion.h
@@ -23,7 +23,7 @@ namespace Kernel
 		BAN::ErrorOr<void> copy_data_to_region(size_t offset_into_region, const uint8_t* buffer, size_t buffer_size);

 	protected:
-		virtual BAN::ErrorOr<bool> allocate_page_containing_impl(vaddr_t vaddr) override;
+		virtual BAN::ErrorOr<bool> allocate_page_containing_impl(vaddr_t vaddr, bool wants_write) override;

 	private:
 		MemoryBackedRegion(PageTable&, size_t size, Type, PageTable::flags_t);