diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/sys/mutex.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/sys/mutex.h b/include/sys/mutex.h index 5e2b2508a..6355782c0 100644 --- a/include/sys/mutex.h +++ b/include/sys/mutex.h @@ -67,7 +67,7 @@ typedef struct { (type == MUTEX_ADAPTIVE) || \ (type == MUTEX_FSTRANS)); \ \ - __mutex_init(MUTEX(mp), #mp, &__key); \ + __mutex_init(MUTEX(mp), (name) ? (#name) : (#mp), &__key); \ spin_lock_init(&(mp)->m_lock); \ (mp)->m_type = type; \ (mp)->m_owner = NULL; \ @@ -95,7 +95,19 @@ typedef struct { _rc_; \ }) -#define mutex_enter(mp) \ +#ifdef CONFIG_DEBUG_LOCK_ALLOC +#define mutex_enter_nested(mp, subclass) \ +{ \ + ASSERT3P(mutex_owner(mp), !=, current); \ + mutex_lock_nested(MUTEX(mp), (subclass)); \ + (mp)->m_owner = current; \ + if ((mp)->m_type == MUTEX_FSTRANS) { \ + (mp)->m_saved_flags = current->flags; \ + current->flags |= PF_FSTRANS; \ + } \ +} +#else /* CONFIG_DEBUG_LOCK_ALLOC */ +#define mutex_enter_nested(mp, subclass) \ { \ ASSERT3P(mutex_owner(mp), !=, current); \ mutex_lock(MUTEX(mp)); \ @@ -105,6 +117,9 @@ typedef struct { current->flags |= PF_FSTRANS; \ } \ } +#endif /* CONFIG_DEBUG_LOCK_ALLOC */ + +#define mutex_enter(mp) mutex_enter_nested((mp), 0) /* * The reason for the spinlock: |