diff options
| author | Richard Braun <rbraun@sceen.net> | 2017-02-14 20:43:38 +0100 |
|---|---|---|
| committer | Richard Braun <rbraun@sceen.net> | 2017-02-14 20:43:38 +0100 |
| commit | 9391ff21c546aad1f2ac0054c92d817591b2d5ae (patch) | |
| tree | e20783f1c2d1a603ac6192bb30f703406c76681a /kern/thread.c | |
| parent | bd8cf49f471162fa2a5d5556014aeafae4cff644 (diff) | |
kern/thread: add reference counter
Counting thread references seems unavoidable for the near-future changes
that are currently brewing.
Diffstat (limited to 'kern/thread.c')
| -rw-r--r-- | kern/thread.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kern/thread.c b/kern/thread.c index eb6f11a5..1631d9a5 100644 --- a/kern/thread.c +++ b/kern/thread.c @@ -1593,6 +1593,7 @@ thread_bootstrap_common(unsigned int cpu) /* Initialize only what's needed during bootstrap */ booter = &thread_booters[cpu]; + booter->nr_refs = 0; /* Make sure booters aren't destroyed */ booter->flags = 0; booter->preempt = 1; cpumap_fill(&booter->cpumap); @@ -1699,6 +1700,7 @@ thread_init(struct thread *thread, void *stack, const struct thread_attr *attr, cpumap = (attr->cpumap == NULL) ? &caller->cpumap : attr->cpumap; assert(attr->policy < ARRAY_SIZE(thread_policy_table)); + thread->nr_refs = 1; thread->flags = 0; thread->runq = NULL; thread_set_wchan(thread, thread, "init"); @@ -1763,7 +1765,7 @@ thread_unlock_runq(struct thread_runq *runq, unsigned long flags) spinlock_unlock_intr_restore(&runq->lock, flags); } -static void +void thread_destroy(struct thread *thread) { struct thread_runq *runq; @@ -1796,7 +1798,7 @@ thread_join_common(struct thread *thread) mutex_unlock(&thread->join_lock); - thread_destroy(thread); + thread_unref(thread); } static void |