diff options
Diffstat (limited to 'kern/thread.c')
| -rw-r--r-- | kern/thread.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/kern/thread.c b/kern/thread.c index 20378ffb..8460f3bc 100644 --- a/kern/thread.c +++ b/kern/thread.c @@ -101,6 +101,7 @@ #include <kern/macros.h> #include <kern/panic.h> #include <kern/percpu.h> +#include <kern/rcu.h> #include <kern/shell.h> #include <kern/sleepq.h> #include <kern/spinlock.h> @@ -641,6 +642,8 @@ thread_runq_schedule(struct thread_runq *runq) assert(next->preempt_level == THREAD_SUSPEND_PREEMPT_LEVEL); if (likely(prev != next)) { + rcu_report_context_switch(thread_rcu_reader(prev)); + /* * That's where the true context switch occurs. The next thread must * unlock the run queue and reenable preemption. Note that unlocking @@ -1700,6 +1703,7 @@ thread_init_booter(unsigned int cpu) booter->flags = 0; booter->intr_level = 0; booter->preempt_level = 1; + rcu_reader_init(&booter->rcu_reader); cpumap_fill(&booter->cpumap); thread_set_user_sched_policy(booter, THREAD_SCHED_POLICY_IDLE); thread_set_user_sched_class(booter, THREAD_SCHED_CLASS_IDLE); @@ -1828,6 +1832,7 @@ thread_init(struct thread *thread, void *stack, thread->pin_level = 0; thread->intr_level = 0; thread->llsync_level = 0; + rcu_reader_init(&thread->rcu_reader); cpumap_copy(&thread->cpumap, cpumap); thread_set_user_sched_policy(thread, attr->policy); thread_set_user_sched_class(thread, thread_policy_to_class(attr->policy)); @@ -2108,7 +2113,6 @@ static void thread_idle(void *arg) { struct thread *self; - int error; (void)arg; @@ -2116,13 +2120,6 @@ thread_idle(void *arg) for (;;) { thread_preempt_disable(); - error = sref_unregister(); - - if (error) { - assert(error == ERROR_BUSY); - goto error_sref; - } - llsync_unregister(); for (;;) { @@ -2137,9 +2134,6 @@ thread_idle(void *arg) } llsync_register(); - sref_register(); - -error_sref: thread_preempt_enable(); } } |