int id;
struct idr *idr = &dev_priv->res_idr[res->func->res_type];
+ write_lock(&dev_priv->resource_lock);
res->avail = false;
list_del_init(&res->lru_head);
write_unlock(&dev_priv->resource_lock);
kfree(res);
write_lock(&dev_priv->resource_lock);
-
if (id != -1)
idr_remove(idr, id);
+ write_unlock(&dev_priv->resource_lock);
}
void vmw_resource_unreference(struct vmw_resource **p_res)
{
struct vmw_resource *res = *p_res;
- struct vmw_private *dev_priv = res->dev_priv;
*p_res = NULL;
- write_lock(&dev_priv->resource_lock);
kref_put(&res->kref, vmw_resource_release);
- write_unlock(&dev_priv->resource_lock);
}
write_unlock(&dev_priv->resource_lock);
}
-struct vmw_resource *vmw_resource_lookup(struct vmw_private *dev_priv,
- struct idr *idr, int id)
+static struct vmw_resource *vmw_resource_lookup(struct vmw_private *dev_priv,
+ struct idr *idr, int id)
{
struct vmw_resource *res;
read_lock(&dev_priv->resource_lock);
res = idr_find(idr, id);
- if (res && res->avail)
- kref_get(&res->kref);
- else
+ if (!res || !res->avail || !kref_get_unless_zero(&res->kref))
res = NULL;
+
read_unlock(&dev_priv->resource_lock);
if (unlikely(res == NULL))
* @res: The resource to evict.
* @interruptible: Whether to wait interruptible.
*/
-int vmw_resource_do_evict(struct vmw_resource *res, bool interruptible)
+static int vmw_resource_do_evict(struct vmw_resource *res, bool interruptible)
{
struct ttm_validate_buffer val_buf;
const struct vmw_res_func *func = res->func;