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Kernel: Stop taking MM lock while using PD/PT quickmaps

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This is no longer required as these quickmaps are now per-CPU. :^)
This commit is contained in:
Andreas Kling
2022-08-22 14:56:26 +02:00
parent a838fdfd88
commit c8375c51ff
3 changed files with 0 additions and 12 deletions
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2
Kernel/Heap/kmalloc.cpp
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@@ -334,7 +334,6 @@ struct KmallocGlobalData {
auto cpu_supports_nx = Processor::current().has_nx();
SpinlockLocker pd_locker(MM.kernel_page_directory().get_lock());
SpinlockLocker mm_locker(Memory::s_mm_lock);
for (auto vaddr = new_subheap_base; !physical_pages.is_empty(); vaddr = vaddr.offset(PAGE_SIZE)) {
// FIXME: We currently leak physical memory when mapping it into the kmalloc heap.
@@ -367,7 +366,6 @@ struct KmallocGlobalData {
// Make sure the entire kmalloc VM range is backed by page tables.
// This avoids having to deal with lazy page table allocation during heap expansion.
SpinlockLocker pd_locker(MM.kernel_page_directory().get_lock());
SpinlockLocker mm_locker(Memory::s_mm_lock);
for (auto vaddr = reserved_region->range().base(); vaddr < reserved_region->range().end(); vaddr = vaddr.offset(PAGE_SIZE)) {
MM.ensure_pte(MM.kernel_page_directory(), vaddr);
}