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-rw-r--r--src/core/hle/kernel/k_thread.cpp13
-rw-r--r--src/core/hle/kernel/k_thread.h2
-rw-r--r--src/core/hle/kernel/kernel.cpp39
3 files changed, 23 insertions, 31 deletions
diff --git a/src/core/hle/kernel/k_thread.cpp b/src/core/hle/kernel/k_thread.cpp
index 21207fe99..7c7c2459c 100644
--- a/src/core/hle/kernel/k_thread.cpp
+++ b/src/core/hle/kernel/k_thread.cpp
@@ -763,19 +763,6 @@ void KThread::Continue() {
KScheduler::OnThreadStateChanged(kernel, this, old_state);
}
-void KThread::WaitUntilSuspended() {
- // Make sure we have a suspend requested.
- ASSERT(IsSuspendRequested());
-
- // Loop until the thread is not executing on any core.
- for (std::size_t i = 0; i < static_cast<std::size_t>(Core::Hardware::NUM_CPU_CORES); ++i) {
- KThread* core_thread{};
- do {
- core_thread = kernel.Scheduler(i).GetSchedulerCurrentThread();
- } while (core_thread == this);
- }
-}
-
Result KThread::SetActivity(Svc::ThreadActivity activity) {
// Lock ourselves.
KScopedLightLock lk(activity_pause_lock);
diff --git a/src/core/hle/kernel/k_thread.h b/src/core/hle/kernel/k_thread.h
index 7cd94a340..083f4962d 100644
--- a/src/core/hle/kernel/k_thread.h
+++ b/src/core/hle/kernel/k_thread.h
@@ -214,8 +214,6 @@ public:
void Continue();
- void WaitUntilSuspended();
-
constexpr void SetSyncedIndex(s32 index) {
synced_index = index;
}
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 1fb25f221..d9eafe261 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -1198,28 +1198,35 @@ void KernelCore::Suspend(bool suspended) {
const bool should_suspend{exception_exited || suspended};
const auto activity = should_suspend ? ProcessActivity::Paused : ProcessActivity::Runnable;
- std::vector<KScopedAutoObject<KThread>> process_threads;
- {
- KScopedSchedulerLock sl{*this};
+ //! This refers to the application process, not the current process.
+ KScopedAutoObject<KProcess> process = CurrentProcess();
+ if (process.IsNull()) {
+ return;
+ }
- if (auto* process = CurrentProcess(); process != nullptr) {
- process->SetActivity(activity);
+ // Set the new activity.
+ process->SetActivity(activity);
- if (!should_suspend) {
- // Runnable now; no need to wait.
- return;
- }
+ // Wait for process execution to stop.
+ bool must_wait{should_suspend};
+
+ // KernelCore::Suspend must be called from locked context, or we
+ // could race another call to SetActivity, interfering with waiting.
+ while (must_wait) {
+ KScopedSchedulerLock sl{*this};
+
+ // Assume that all threads have finished running.
+ must_wait = false;
- for (auto* thread : process->GetThreadList()) {
- process_threads.emplace_back(thread);
+ for (auto i = 0; i < static_cast<s32>(Core::Hardware::NUM_CPU_CORES); ++i) {
+ if (Scheduler(i).GetSchedulerCurrentThread()->GetOwnerProcess() ==
+ process.GetPointerUnsafe()) {
+ // A thread has not finished running yet.
+ // Continue waiting.
+ must_wait = true;
}
}
}
-
- // Wait for execution to stop.
- for (auto& thread : process_threads) {
- thread->WaitUntilSuspended();
- }
}
void KernelCore::ShutdownCores() {