| 41,7 → 41,6 |
|---|
| #include <proc/uarg.h> |
| #include <mm/as.h> |
| #include <mm/slab.h> |
| #include <atomic.h> |
| #include <synch/spinlock.h> |
| #include <synch/waitq.h> |
| #include <arch.h> |
| 141,8 → 140,11 |
|---|
| |
| /* |
| * Increment address space reference count. |
| * TODO: Reconsider the locking scheme. |
| */ |
| atomic_inc(&as->refcount); |
| mutex_lock(&as->lock); |
| as->refcount++; |
| mutex_unlock(&as->lock); |
| |
| spinlock_lock(&tasks_lock); |
| |
| 164,8 → 166,15 |
|---|
| task_destroy_arch(t); |
| btree_destroy(&t->futexes); |
| |
| if (atomic_predec(&t->as->refcount) == 0) |
| mutex_lock_active(&t->as->lock); |
| if (--t->as->refcount == 0) { |
| mutex_unlock(&t->as->lock); |
| as_destroy(t->as); |
| /* |
| * t->as is destroyed. |
| */ |
| } else |
| mutex_unlock(&t->as->lock); |
| |
| free(t); |
| TASK = NULL; |