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Kernel: Make Thread::Blocker::m_thread a NonnullRefPtr<Thread>

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There's no harm in the blocker always knowing which thread it originated
from. It also simplifies some logic since we don't need to think about
it ever being null.
This commit is contained in:
Andreas Kling 2021-08-24 01:01:50 +02:00
parent c351945474
commit a58c4bbcf5
2 changed files with 10 additions and 15 deletions
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5
Kernel/ThreadBlockers.cpp
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@ -49,8 +49,6 @@ void Thread::Blocker::begin_blocking(Badge<Thread>)
{
SpinlockLocker lock(m_lock);
VERIFY(!m_is_blocking);
VERIFY(!m_blocked_thread);
m_blocked_thread = Thread::current();
m_is_blocking = true;
}
@ -60,9 +58,8 @@ auto Thread::Blocker::end_blocking(Badge<Thread>, bool did_timeout) -> BlockResu
// if m_is_blocking is false here, some thread forced to
// unblock us when we get here. This is only called from the
// thread that was blocked.
VERIFY(Thread::current() == m_blocked_thread);
VERIFY(Thread::current() == m_thread);
m_is_blocking = false;
m_blocked_thread = nullptr;
was_unblocked(did_timeout);
return block_result();