Bananymous/banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Rewrite physical memory allocation with PageTable::fast_pages

Browse Source
This commit is contained in:
Bananymous
2024-10-14 11:28:15 +03:00
parent 6a46a25f48
commit 55fbd09e45
3 changed files with 101 additions and 119 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/kernel/FS/TmpFS/FileSystem.cpp
View File

@@ -191,15 +191,17 @@ namespace Kernel
paddr_t page_containing = find_indirect(m_data_pages, index_of_page, 2);
paddr_t paddr_to_free = 0;
PageTable::with_fast_page(page_containing, [&] {
auto& page_info = PageTable::fast_page_as_sized<PageInfo>(index_in_page);
ASSERT(page_info.flags() & PageInfo::Flags::Present);
Heap::get().release_page(page_info.paddr());
paddr_to_free = page_info.paddr();
m_used_pages--;
page_info.set_paddr(0);
page_info.set_flags(0);
});
Heap::get().release_page(paddr_to_free);
}
BAN::ErrorOr<size_t> TmpFileSystem::allocate_block()