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Kernel: Use KString for Region names

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Replace the AK::String used for Region::m_name with a KString.

This seems beneficial across the board, but as a specific data point,
it reduces time spent in sys$set_mmap_name() by ~50% on test-js. :^)
This commit is contained in:
Andreas Kling 2021-05-28 09:33:14 +02:00
parent a1944ec966
commit fc9ce22981
10 changed files with 64 additions and 62 deletions
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12
Kernel/VM/MemoryManager.h
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@ -144,12 +144,12 @@ public:
void deallocate_user_physical_page(const PhysicalPage&);
void deallocate_supervisor_physical_page(const PhysicalPage&);
OwnPtr<Region> allocate_contiguous_kernel_region(size_t, String name, Region::Access access, size_t physical_alignment = PAGE_SIZE, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region(size_t, String name, Region::Access access, AllocationStrategy strategy = AllocationStrategy::Reserve, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region(PhysicalAddress, size_t, String name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_identity(PhysicalAddress, size_t, String name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_with_vmobject(VMObject&, size_t, String name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_with_vmobject(const Range&, VMObject&, String name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_contiguous_kernel_region(size_t, StringView name, Region::Access access, size_t physical_alignment = PAGE_SIZE, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region(size_t, StringView name, Region::Access access, AllocationStrategy strategy = AllocationStrategy::Reserve, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region(PhysicalAddress, size_t, StringView name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_identity(PhysicalAddress, size_t, StringView name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_with_vmobject(VMObject&, size_t, StringView name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
OwnPtr<Region> allocate_kernel_region_with_vmobject(const Range&, VMObject&, StringView name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
unsigned user_physical_pages() const { return m_user_physical_pages; }
unsigned user_physical_pages_used() const { return m_user_physical_pages_used; }