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[kernel] Fix scheduler promotion bug

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The scheduler was accidentally checking the state of the _currently
running_ thread when seeing if it should promote a thread in the ready
queue. So, ie, constant-priority threads would get promoted as long as
some non-constant-priority thread was the currently-running thread.
This commit is contained in:
Justin C. Miller
2022-01-23 00:29:51 -08:00
parent 1d30322820
commit cbd2d9d625
1 changed files with 1 additions and 1 deletions
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2
src/kernel/scheduler.cpp
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@@ -163,7 +163,7 @@ scheduler::check_promotions(run_queue &queue, uint64_t now)
{ {
for (auto &pri_list : queue.ready) { for (auto &pri_list : queue.ready) {
for (auto *tcb : pri_list) { for (auto *tcb : pri_list) {
const thread *th = queue.current->thread; const thread *th = tcb->thread;
const bool constant = th->has_state(thread::state::constant); const bool constant = th->has_state(thread::state::constant);
if (constant) if (constant)
continue; continue;