From 33149b01a99dc988f90c9902ff596e162ca23942 Mon Sep 17 00:00:00 2001
From: Richard Braun <rbraun@sceen.net>
Date: Sun, 19 May 2019 16:23:16 +0200
Subject: kern/sref: rework

Remove CPU registration, optimize manager weak-ups, replace the global review
queue with local review queues.

CPU registration and the global review queue were motivated by low power
consumption, but considering how the kernel is evolving, this was likely
overengineering.
---
 kern/thread.c | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'kern/thread.c')

diff --git a/kern/thread.c b/kern/thread.c
index d592b72e..71943c04 100644
--- a/kern/thread.c
+++ b/kern/thread.c
@@ -105,7 +105,6 @@
 #include <kern/shell.h>
 #include <kern/sleepq.h>
 #include <kern/spinlock.h>
-#include <kern/sref.h>
 #include <kern/syscnt.h>
 #include <kern/task.h>
 #include <kern/thread.h>
@@ -2725,8 +2724,6 @@ thread_run_scheduler(void)
     assert(thread == runq->current);
     assert(thread->preempt_level == (THREAD_SUSPEND_PREEMPT_LEVEL - 1));
 
-    sref_register();
-
     spinlock_lock(&runq->lock);
     thread = thread_runq_get_next(thread_runq_local());
     spinlock_transfer_owner(&runq->lock, thread);
-- 
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