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Kernel: Rename SpinLock => Spinlock

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This commit is contained in:
Andreas Kling 2021-08-22 01:37:17 +02:00
parent 7d5d26b048
commit 55adace359
110 changed files with 491 additions and 491 deletions
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66
Kernel/Memory/MemoryManager.cpp
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@ -47,7 +47,7 @@ namespace Kernel::Memory {
// run. If we do, then Singleton would get re-initialized, causing
// the memory manager to be initialized twice!
static MemoryManager* s_the;
RecursiveSpinLock s_mm_lock;
RecursiveSpinlock s_mm_lock;
MemoryManager& MemoryManager::the()
{
@ -63,7 +63,7 @@ UNMAP_AFTER_INIT MemoryManager::MemoryManager()
{
s_the = this;
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
parse_memory_map();
write_cr3(kernel_page_directory().cr3());
protect_kernel_image();
@ -88,7 +88,7 @@ UNMAP_AFTER_INIT MemoryManager::~MemoryManager()
UNMAP_AFTER_INIT void MemoryManager::protect_kernel_image()
{
ScopedSpinLock page_lock(kernel_page_directory().get_lock());
ScopedSpinlock page_lock(kernel_page_directory().get_lock());
// Disable writing to the kernel text and rodata segments.
for (auto i = start_of_kernel_text; i < start_of_kernel_data; i += PAGE_SIZE) {
auto& pte = *ensure_pte(kernel_page_directory(), VirtualAddress(i));
@ -105,8 +105,8 @@ UNMAP_AFTER_INIT void MemoryManager::protect_kernel_image()
UNMAP_AFTER_INIT void MemoryManager::protect_readonly_after_init_memory()
{
ScopedSpinLock page_lock(kernel_page_directory().get_lock());
ScopedSpinLock mm_lock(s_mm_lock);
ScopedSpinlock page_lock(kernel_page_directory().get_lock());
ScopedSpinlock mm_lock(s_mm_lock);
// Disable writing to the .ro_after_init section
for (auto i = (FlatPtr)&start_of_ro_after_init; i < (FlatPtr)&end_of_ro_after_init; i += PAGE_SIZE) {
auto& pte = *ensure_pte(kernel_page_directory(), VirtualAddress(i));
@ -117,8 +117,8 @@ UNMAP_AFTER_INIT void MemoryManager::protect_readonly_after_init_memory()
void MemoryManager::unmap_text_after_init()
{
ScopedSpinLock page_lock(kernel_page_directory().get_lock());
ScopedSpinLock mm_lock(s_mm_lock);
ScopedSpinlock page_lock(kernel_page_directory().get_lock());
ScopedSpinlock mm_lock(s_mm_lock);
auto start = page_round_down((FlatPtr)&start_of_unmap_after_init);
auto end = page_round_up((FlatPtr)&end_of_unmap_after_init);
@ -135,8 +135,8 @@ void MemoryManager::unmap_text_after_init()
void MemoryManager::unmap_ksyms_after_init()
{
ScopedSpinLock mm_lock(s_mm_lock);
ScopedSpinLock page_lock(kernel_page_directory().get_lock());
ScopedSpinlock mm_lock(s_mm_lock);
ScopedSpinlock page_lock(kernel_page_directory().get_lock());
auto start = page_round_down((FlatPtr)start_of_kernel_ksyms);
auto end = page_round_up((FlatPtr)end_of_kernel_ksyms);
@ -413,7 +413,7 @@ UNMAP_AFTER_INIT void MemoryManager::initialize_physical_pages()
// try to map the entire region into kernel space so we always have it
// We can't use ensure_pte here because it would try to allocate a PhysicalPage and we don't have the array
// mapped yet so we can't create them
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
// Create page tables at the beginning of m_physical_pages_region, followed by the PhysicalPageEntry array
auto page_tables_base = m_physical_pages_region->lower();
@ -612,7 +612,7 @@ UNMAP_AFTER_INIT void MemoryManager::initialize(u32 cpu)
Region* MemoryManager::kernel_region_from_vaddr(VirtualAddress vaddr)
{
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
for (auto& region : MM.m_kernel_regions) {
if (region.contains(vaddr))
return &region;
@ -628,7 +628,7 @@ Region* MemoryManager::find_user_region_from_vaddr_no_lock(AddressSpace& space,
Region* MemoryManager::find_user_region_from_vaddr(AddressSpace& space, VirtualAddress vaddr)
{
ScopedSpinLock lock(space.get_lock());
ScopedSpinlock lock(space.get_lock());
return find_user_region_from_vaddr_no_lock(space, vaddr);
}
@ -636,7 +636,7 @@ void MemoryManager::validate_syscall_preconditions(AddressSpace& space, Register
{
// We take the space lock once here and then use the no_lock variants
// to avoid excessive spinlock recursion in this extemely common path.
ScopedSpinLock lock(space.get_lock());
ScopedSpinlock lock(space.get_lock());
auto unlock_and_handle_crash = [&lock, &regs](const char* description, int signal) {
lock.unlock();
@ -702,7 +702,7 @@ PageFaultResponse MemoryManager::handle_page_fault(PageFault const& fault)
OwnPtr<Region> MemoryManager::allocate_contiguous_kernel_region(size_t size, StringView name, Region::Access access, Region::Cacheable cacheable)
{
VERIFY(!(size % PAGE_SIZE));
ScopedSpinLock lock(kernel_page_directory().get_lock());
ScopedSpinlock lock(kernel_page_directory().get_lock());
auto range = kernel_page_directory().range_allocator().allocate_anywhere(size);
if (!range.has_value())
return {};
@ -721,7 +721,7 @@ OwnPtr<Region> MemoryManager::allocate_kernel_region(size_t size, StringView nam
auto maybe_vm_object = AnonymousVMObject::try_create_with_size(size, strategy);
if (maybe_vm_object.is_error())
return {};
ScopedSpinLock lock(kernel_page_directory().get_lock());
ScopedSpinlock lock(kernel_page_directory().get_lock());
auto range = kernel_page_directory().range_allocator().allocate_anywhere(size);
if (!range.has_value())
return {};
@ -734,7 +734,7 @@ OwnPtr<Region> MemoryManager::allocate_kernel_region(PhysicalAddress paddr, size
if (maybe_vm_object.is_error())
return {};
VERIFY(!(size % PAGE_SIZE));
ScopedSpinLock lock(kernel_page_directory().get_lock());
ScopedSpinlock lock(kernel_page_directory().get_lock());
auto range = kernel_page_directory().range_allocator().allocate_anywhere(size);
if (!range.has_value())
return {};
@ -755,7 +755,7 @@ OwnPtr<Region> MemoryManager::allocate_kernel_region_with_vmobject(VirtualRange
OwnPtr<Region> MemoryManager::allocate_kernel_region_with_vmobject(VMObject& vmobject, size_t size, StringView name, Region::Access access, Region::Cacheable cacheable)
{
VERIFY(!(size % PAGE_SIZE));
ScopedSpinLock lock(kernel_page_directory().get_lock());
ScopedSpinlock lock(kernel_page_directory().get_lock());
auto range = kernel_page_directory().range_allocator().allocate_anywhere(size);
if (!range.has_value())
return {};
@ -765,7 +765,7 @@ OwnPtr<Region> MemoryManager::allocate_kernel_region_with_vmobject(VMObject& vmo
Optional<CommittedPhysicalPageSet> MemoryManager::commit_user_physical_pages(size_t page_count)
{
VERIFY(page_count > 0);
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
if (m_system_memory_info.user_physical_pages_uncommitted < page_count)
return {};
@ -778,7 +778,7 @@ void MemoryManager::uncommit_user_physical_pages(Badge<CommittedPhysicalPageSet>
{
VERIFY(page_count > 0);
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
VERIFY(m_system_memory_info.user_physical_pages_committed >= page_count);
m_system_memory_info.user_physical_pages_uncommitted += page_count;
@ -787,7 +787,7 @@ void MemoryManager::uncommit_user_physical_pages(Badge<CommittedPhysicalPageSet>
void MemoryManager::deallocate_physical_page(PhysicalAddress paddr)
{
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
// Are we returning a user page?
for (auto& region : m_user_physical_regions) {
@ -839,7 +839,7 @@ RefPtr<PhysicalPage> MemoryManager::find_free_user_physical_page(bool committed)
NonnullRefPtr<PhysicalPage> MemoryManager::allocate_committed_user_physical_page(Badge<CommittedPhysicalPageSet>, ShouldZeroFill should_zero_fill)
{
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
auto page = find_free_user_physical_page(true);
if (should_zero_fill == ShouldZeroFill::Yes) {
auto* ptr = quickmap_page(*page);
@ -851,7 +851,7 @@ NonnullRefPtr<PhysicalPage> MemoryManager::allocate_committed_user_physical_page
RefPtr<PhysicalPage> MemoryManager::allocate_user_physical_page(ShouldZeroFill should_zero_fill, bool* did_purge)
{
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
auto page = find_free_user_physical_page(false);
bool purged_pages = false;
@ -893,7 +893,7 @@ RefPtr<PhysicalPage> MemoryManager::allocate_user_physical_page(ShouldZeroFill s
NonnullRefPtrVector<PhysicalPage> MemoryManager::allocate_contiguous_supervisor_physical_pages(size_t size)
{
VERIFY(!(size % PAGE_SIZE));
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
size_t count = ceil_div(size, static_cast<size_t>(PAGE_SIZE));
auto physical_pages = m_super_physical_region->take_contiguous_free_pages(count);
@ -911,7 +911,7 @@ NonnullRefPtrVector<PhysicalPage> MemoryManager::allocate_contiguous_supervisor_
RefPtr<PhysicalPage> MemoryManager::allocate_supervisor_physical_page()
{
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
auto page = m_super_physical_region->take_free_page();
if (!page) {
@ -934,7 +934,7 @@ void MemoryManager::enter_space(AddressSpace& space)
{
auto current_thread = Thread::current();
VERIFY(current_thread != nullptr);
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
current_thread->regs().cr3 = space.page_directory().cr3();
write_cr3(space.page_directory().cr3());
@ -1006,7 +1006,7 @@ u8* MemoryManager::quickmap_page(PhysicalAddress const& physical_address)
VERIFY_INTERRUPTS_DISABLED();
auto& mm_data = get_data();
mm_data.m_quickmap_prev_flags = mm_data.m_quickmap_in_use.lock();
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
VirtualAddress vaddr(KERNEL_QUICKMAP_PER_CPU_BASE + Processor::id() * PAGE_SIZE);
u32 pte_idx = (vaddr.get() - KERNEL_PT1024_BASE) / PAGE_SIZE;
@ -1025,7 +1025,7 @@ u8* MemoryManager::quickmap_page(PhysicalAddress const& physical_address)
void MemoryManager::unquickmap_page()
{
VERIFY_INTERRUPTS_DISABLED();
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
auto& mm_data = get_data();
VERIFY(mm_data.m_quickmap_in_use.is_locked());
VirtualAddress vaddr(KERNEL_QUICKMAP_PER_CPU_BASE + Processor::id() * PAGE_SIZE);
@ -1049,20 +1049,20 @@ bool MemoryManager::validate_user_stack_no_lock(AddressSpace& space, VirtualAddr
bool MemoryManager::validate_user_stack(AddressSpace& space, VirtualAddress vaddr) const
{
ScopedSpinLock lock(space.get_lock());
ScopedSpinlock lock(space.get_lock());
return validate_user_stack_no_lock(space, vaddr);
}
void MemoryManager::register_region(Region& region)
{
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
if (region.is_kernel())
m_kernel_regions.append(region);
}
void MemoryManager::unregister_region(Region& region)
{
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
if (region.is_kernel())
m_kernel_regions.remove(region);
}
@ -1077,7 +1077,7 @@ void MemoryManager::dump_kernel_regions()
#endif
dbgln("BEGIN{} END{} SIZE{} ACCESS NAME",
addr_padding, addr_padding, addr_padding);
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock lock(s_mm_lock);
for (auto& region : m_kernel_regions) {
dbgln("{:p} -- {:p} {:p} {:c}{:c}{:c}{:c}{:c}{:c} {}",
region.vaddr().get(),
@ -1095,8 +1095,8 @@ void MemoryManager::dump_kernel_regions()
void MemoryManager::set_page_writable_direct(VirtualAddress vaddr, bool writable)
{
ScopedSpinLock page_lock(kernel_page_directory().get_lock());
ScopedSpinLock lock(s_mm_lock);
ScopedSpinlock page_lock(kernel_page_directory().get_lock());
ScopedSpinlock lock(s_mm_lock);
auto* pte = ensure_pte(kernel_page_directory(), vaddr);
VERIFY(pte);
if (pte->is_writable() == writable)