k_thread: Fix data race

TSan reports a data race between writing at cpp:1162 and reading at
h:262. Make the thread_state atomic to prevent this.
This commit is contained in:
lat9nq 2022-04-01 18:57:40 -04:00
parent d6a0666268
commit 6bcbbb29e7
2 changed files with 4 additions and 3 deletions

View file

@ -723,7 +723,7 @@ void KThread::UpdateState() {
ASSERT(kernel.GlobalSchedulerContext().IsLocked());
// Set our suspend flags in state.
const auto old_state = thread_state;
const ThreadState old_state = thread_state;
const auto new_state =
static_cast<ThreadState>(this->GetSuspendFlags()) | (old_state & ThreadState::Mask);
thread_state = new_state;
@ -738,7 +738,7 @@ void KThread::Continue() {
ASSERT(kernel.GlobalSchedulerContext().IsLocked());
// Clear our suspend flags in state.
const auto old_state = thread_state;
const ThreadState old_state = thread_state;
thread_state = old_state & ThreadState::Mask;
// Note the state change in scheduler.