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Kernel: Remove Region API's for setting/unsetting the page directory

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This is done implicitly by mapping or unmapping the region.
This commit is contained in:
Andreas Kling 2019-11-04 00:23:31 +01:00
parent e3dda4e87b
commit 6ed9cc4717
Notes: sideshowbarker 2024-07-19 11:26:24 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/6ed9cc47174
2 changed files with 3 additions and 14 deletions
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5
Kernel/VM/Region.cpp
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@ -213,13 +213,14 @@ void Region::unmap(ShouldDeallocateVirtualMemoryRange deallocate_range)
}
if (deallocate_range == ShouldDeallocateVirtualMemoryRange::Yes)
page_directory()->range_allocator().deallocate(range());
release_page_directory();
m_page_directory = nullptr;
}
void Region::map(PageDirectory& page_directory)
{
ASSERT(!m_page_directory || m_page_directory == &page_directory);
InterruptDisabler disabler;
set_page_directory(page_directory);
m_page_directory = page_directory;
#ifdef MM_DEBUG
dbgprintf("MM: map_region_at_address will map VMO pages %u - %u (VMO page count: %u)\n", first_page_index(), last_page_index(), vmobject().page_count());
#endif

12
Kernel/VM/Region.h
View File

@ -91,18 +91,6 @@ public:
PageDirectory* page_directory() { return m_page_directory.ptr(); }
void set_page_directory(PageDirectory& page_directory)
{
ASSERT(!m_page_directory || m_page_directory == &page_directory);
m_page_directory = page_directory;
}
void release_page_directory()
{
ASSERT(m_page_directory);
m_page_directory.clear();
}
bool should_cow(size_t page_index) const;
void set_should_cow(size_t page_index, bool);