From 05156cac945df875d7e6cd796f761b849f52721a Mon Sep 17 00:00:00 2001 From: Andreas Kling Date: Wed, 24 Aug 2022 12:27:20 +0200 Subject: [PATCH] Kernel: Don't take MM lock in MemoryManager::enter_address_space() We're not accessing any of the MM members here. Also remove some redundant code to update CR3, since it calls activate_page_directory() which does exactly the same thing. --- Kernel/Memory/MemoryManager.cpp | 3 --- 1 file changed, 3 deletions(-) diff --git a/Kernel/Memory/MemoryManager.cpp b/Kernel/Memory/MemoryManager.cpp index 4d1b3df8ef..be715525bf 100644 --- a/Kernel/Memory/MemoryManager.cpp +++ b/Kernel/Memory/MemoryManager.cpp @@ -1018,9 +1018,6 @@ void MemoryManager::enter_address_space(AddressSpace& space) { auto* current_thread = Thread::current(); VERIFY(current_thread != nullptr); - SpinlockLocker lock(s_mm_lock); - - current_thread->regs().cr3 = space.page_directory().cr3(); activate_page_directory(space.page_directory(), current_thread); }