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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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4
Kernel/VM/Space.h
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@ -35,8 +35,8 @@ public:
Optional<Range> allocate_range(VirtualAddress, size_t, size_t alignment = PAGE_SIZE);
KResultOr<Region*> allocate_region_with_vmobject(const Range&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot, bool shared);
KResultOr<Region*> allocate_region(const Range&, const String& name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
KResultOr<Region*> allocate_region_with_vmobject(const Range&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, StringView name, int prot, bool shared);
KResultOr<Region*> allocate_region(const Range&, StringView name, int prot = PROT_READ | PROT_WRITE, AllocationStrategy strategy = AllocationStrategy::Reserve);
bool deallocate_region(Region& region);
OwnPtr<Region> take_region(Region& region);