fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2026-01-02 22:55:23 +00:00
Code Issues Packages Projects Releases Wiki Activity

Kernel: Remove global MM lock in favor of SpinlockProtected

Browse Source 
Globally shared MemoryManager state is now kept in a GlobalData struct
and wrapped in SpinlockProtected.

A small set of members are left outside the GlobalData struct as they
are only set during boot initialization, and then remain constant.
This allows us to access those members without taking any locks.
This commit is contained in:
Andreas Kling
2022-08-25 16:46:13 +02:00
parent 36225c0ae7
commit a3b2b20782
6 changed files with 470 additions and 456 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Kernel/Thread.cpp
View File

@@ -144,7 +144,6 @@ Thread::BlockResult Thread::block_impl(BlockTimeout const& timeout, Blocker& blo
VERIFY(!Processor::current_in_irq());
VERIFY(this == Thread::current());
ScopedCritical critical;
VERIFY(!Memory::s_mm_lock.is_locked_by_current_processor());
SpinlockLocker scheduler_lock(g_scheduler_lock);
@@ -259,7 +258,6 @@ void Thread::block(Kernel::Mutex& lock, SpinlockLocker<Spinlock>& lock_lock, u32
VERIFY(!Processor::current_in_irq());
VERIFY(this == Thread::current());
ScopedCritical critical;
VERIFY(!Memory::s_mm_lock.is_locked_by_current_processor());
SpinlockLocker scheduler_lock(g_scheduler_lock);
SpinlockLocker block_lock(m_block_lock);