Michael S. Tsirkin wrote:
static inline void cm_deref_id(struct cm_id_private *cm_id_priv)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&cm_id_priv->lock, flags);
if (atomic_dec_and_test(&cm_id_priv->refcount))
wake_up(&cm_id_priv->wait);
+ spin_unlock_irqrestore(&cm_id_priv->lock, flags);
}
Could we use atomic_dec_and_lock() instead? This would keep refcount atomic,
but use a spinlock to synchronize with destruction.
- Sean
_______________________________________________
openib-general mailing list
[email protected]
http://openib.org/mailman/listinfo/openib-general
To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
