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Kernel: Minor cleanup around purge() during physical page allocation

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This commit is contained in:
Andreas Kling 2021-07-25 02:11:32 +02:00
parent 2d1a651e0a
commit 297c0748f0
Notes: sideshowbarker 2024-07-18 08:22:04 +09:00
1 changed files with 4 additions and 2 deletions
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6
Kernel/VM/MemoryManager.cpp
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@ -876,8 +876,10 @@ RefPtr<PhysicalPage> MemoryManager::allocate_user_physical_page(ShouldZeroFill s
for_each_vmobject([&](auto& vmobject) {
if (!vmobject.is_anonymous())
return IterationDecision::Continue;
int purged_page_count = static_cast<AnonymousVMObject&>(vmobject).purge();
if (purged_page_count) {
auto& anonymous_vmobject = static_cast<AnonymousVMObject&>(vmobject);
if (!anonymous_vmobject.is_purgeable() || !anonymous_vmobject.is_volatile())
return IterationDecision::Continue;
if (auto purged_page_count = anonymous_vmobject.purge()) {
dbgln("MM: Purge saved the day! Purged {} pages from AnonymousVMObject", purged_page_count);
page = find_free_user_physical_page(false);
purged_pages = true;