1 /* 2 * Copyright (C) 2016 Parav Pandit <pandit.parav@gmail.com> 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 * more details. 12 */ 13 14 #include "core_priv.h" 15 16 /** 17 * ib_device_register_rdmacg - register with rdma cgroup. 18 * @device: device to register to participate in resource 19 * accounting by rdma cgroup. 20 * 21 * Register with the rdma cgroup. Should be called before 22 * exposing rdma device to user space applications to avoid 23 * resource accounting leak. 24 */ 25 void ib_device_register_rdmacg(struct ib_device *device) 26 { 27 device->cg_device.name = device->name; 28 rdmacg_register_device(&device->cg_device); 29 } 30 31 /** 32 * ib_device_unregister_rdmacg - unregister with rdma cgroup. 33 * @device: device to unregister. 34 * 35 * Unregister with the rdma cgroup. Should be called after 36 * all the resources are deallocated, and after a stage when any 37 * other resource allocation by user application cannot be done 38 * for this device to avoid any leak in accounting. 39 */ 40 void ib_device_unregister_rdmacg(struct ib_device *device) 41 { 42 rdmacg_unregister_device(&device->cg_device); 43 } 44 45 int ib_rdmacg_try_charge(struct ib_rdmacg_object *cg_obj, 46 struct ib_device *device, 47 enum rdmacg_resource_type resource_index) 48 { 49 return rdmacg_try_charge(&cg_obj->cg, &device->cg_device, 50 resource_index); 51 } 52 EXPORT_SYMBOL(ib_rdmacg_try_charge); 53 54 void ib_rdmacg_uncharge(struct ib_rdmacg_object *cg_obj, 55 struct ib_device *device, 56 enum rdmacg_resource_type resource_index) 57 { 58 rdmacg_uncharge(cg_obj->cg, &device->cg_device, 59 resource_index); 60 } 61 EXPORT_SYMBOL(ib_rdmacg_uncharge); 62