55 				unsigned long age;  in pool_free_older_than()  local
59 				age = READ_ONCE(node->age);  in pool_free_older_than()
60 				if (!age || jiffies - age < keep)  in pool_free_older_than()
64 				if (!xchg(&node->age, 0))  in pool_free_older_than()
115 	GEM_BUG_ON(node->age);  in pool_retire()
118 	WRITE_ONCE(node->age, jiffies ?: 1); /* 0 reserved for active nodes */  in pool_retire()
151 	node->age = 0;  in node_create()
184 		unsigned long age;  in intel_gt_get_buffer_pool()  local
192 		age = READ_ONCE(node->age);  in intel_gt_get_buffer_pool()
193 		if (!age)  in intel_gt_get_buffer_pool()
196 		if (cmpxchg(&node->age, age, 0) == age) {  in intel_gt_get_buffer_pool()