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/kernel/Memory/SharedMemoryObject.cpp
+++ b/kernel/kernel/Memory/SharedMemoryObject.cpp
@@ -87,9 +87,10 @@ namespace Kernel
 		return BAN::UniqPtr<MemoryRegion>(BAN::move(region));
 	}

-	BAN::ErrorOr<bool> SharedMemoryObject::allocate_page_containing_impl(vaddr_t address)
+	BAN::ErrorOr<bool> SharedMemoryObject::allocate_page_containing_impl(vaddr_t address, bool wants_write)
 	{
 		ASSERT(contains(address));
+		(void)wants_write;

 		// Check if address is already mapped
 		vaddr_t vaddr = address & PAGE_ADDR_MASK;