42 	struct swap_cgroup_ctrl *ctrl;  in swap_cgroup_prepare()  local
45 	ctrl = &swap_cgroup_ctrl[type];  in swap_cgroup_prepare()
47 	for (idx = 0; idx < ctrl->length; idx++) {  in swap_cgroup_prepare()
51 		ctrl->map[idx] = page;  in swap_cgroup_prepare()
60 		__free_page(ctrl->map[idx]);  in swap_cgroup_prepare()
65 static struct swap_cgroup *__lookup_swap_cgroup(struct swap_cgroup_ctrl *ctrl,  in __lookup_swap_cgroup()  argument
71 	mappage = ctrl->map[offset / SC_PER_PAGE];  in __lookup_swap_cgroup()
80 	struct swap_cgroup_ctrl *ctrl;  in lookup_swap_cgroup()  local
82 	ctrl = &swap_cgroup_ctrl[swp_type(ent)];  in lookup_swap_cgroup()
84 		*ctrlp = ctrl;  in lookup_swap_cgroup()
85 	return __lookup_swap_cgroup(ctrl, offset);  in lookup_swap_cgroup()
100 	struct swap_cgroup_ctrl *ctrl;  in swap_cgroup_cmpxchg()  local
105 	sc = lookup_swap_cgroup(ent, &ctrl);  in swap_cgroup_cmpxchg()
107 	spin_lock_irqsave(&ctrl->lock, flags);  in swap_cgroup_cmpxchg()
113 	spin_unlock_irqrestore(&ctrl->lock, flags);  in swap_cgroup_cmpxchg()
129 	struct swap_cgroup_ctrl *ctrl;  in swap_cgroup_record()  local
136 	sc = lookup_swap_cgroup(ent, &ctrl);  in swap_cgroup_record()
138 	spin_lock_irqsave(&ctrl->lock, flags);  in swap_cgroup_record()
149 			sc = __lookup_swap_cgroup(ctrl, offset);  in swap_cgroup_record()
151 	spin_unlock_irqrestore(&ctrl->lock, flags);  in swap_cgroup_record()
172 	struct swap_cgroup_ctrl *ctrl;  in swap_cgroup_swapon()  local
184 	ctrl = &swap_cgroup_ctrl[type];  in swap_cgroup_swapon()
186 	ctrl->length = length;  in swap_cgroup_swapon()
187 	ctrl->map = array;  in swap_cgroup_swapon()
188 	spin_lock_init(&ctrl->lock);  in swap_cgroup_swapon()
191 		ctrl->map = NULL;  in swap_cgroup_swapon()
192 		ctrl->length = 0;  in swap_cgroup_swapon()
210 	struct swap_cgroup_ctrl *ctrl;  in swap_cgroup_swapoff()  local
216 	ctrl = &swap_cgroup_ctrl[type];  in swap_cgroup_swapoff()
217 	map = ctrl->map;  in swap_cgroup_swapoff()
218 	length = ctrl->length;  in swap_cgroup_swapoff()
219 	ctrl->map = NULL;  in swap_cgroup_swapoff()
220 	ctrl->length = 0;  in swap_cgroup_swapoff()