575 static void post_status(struct hv_dynmem_device *dm);
973 	struct hv_dynmem_device *dm = &dm_device;  in hot_add_req()  local
980 	pg_start = dm->ha_wrk.ha_page_range.finfo.start_page;  in hot_add_req()
981 	pfn_cnt = dm->ha_wrk.ha_page_range.finfo.page_cnt;  in hot_add_req()
983 	rg_start = dm->ha_wrk.ha_region_range.finfo.start_page;  in hot_add_req()
984 	rg_sz = dm->ha_wrk.ha_region_range.finfo.page_cnt;  in hot_add_req()
986 	if (rg_start == 0 && !dm->host_specified_ha_region) {  in hot_add_req()
1002 	dm->num_pages_added += resp.page_count;  in hot_add_req()
1034 	dm->state = DM_INITIALIZED;  in hot_add_req()
1036 	vmbus_sendpacket(dm->dev->channel, &resp,  in hot_add_req()
1042 static void process_info(struct hv_dynmem_device *dm, struct dm_info_msg *msg)  in process_info()  argument
1055 			dm->max_dynamic_page_count = *max_page_count;  in process_info()
1098 static unsigned long get_pages_committed(struct hv_dynmem_device *dm)  in get_pages_committed()  argument
1101 		dm->num_pages_ballooned +  in get_pages_committed()
1102 		(dm->num_pages_added > dm->num_pages_onlined ?  in get_pages_committed()
1103 		 dm->num_pages_added - dm->num_pages_onlined : 0) +  in get_pages_committed()
1117 static void post_status(struct hv_dynmem_device *dm)  in post_status()  argument
1148 	num_pages_committed = get_pages_committed(dm);  in post_status()
1151 			     vm_memory_committed(), dm->num_pages_ballooned,  in post_status()
1152 			     dm->num_pages_added, dm->num_pages_onlined);  in post_status()
1174 	vmbus_sendpacket(dm->dev->channel, &status,  in post_status()
1180 static void free_balloon_pages(struct hv_dynmem_device *dm,  in free_balloon_pages()  argument
1192 		dm->num_pages_ballooned--;  in free_balloon_pages()
1197 static unsigned int alloc_balloon_pages(struct hv_dynmem_device *dm,  in alloc_balloon_pages()  argument
1221 		dm->num_pages_ballooned += alloc_unit;  in alloc_balloon_pages()
1336 static void balloon_down(struct hv_dynmem_device *dm,  in balloon_down()  argument
1343 	unsigned int prev_pages_ballooned = dm->num_pages_ballooned;  in balloon_down()
1346 		free_balloon_pages(dm, &range_array[i]);  in balloon_down()
1351 		 prev_pages_ballooned - dm->num_pages_ballooned);  in balloon_down()
1366 	dm->state = DM_INITIALIZED;  in balloon_down()
1373 	struct hv_dynmem_device *dm = dm_dev;  in dm_thread_func()  local
1383 		post_status(dm);  in dm_thread_func()
1401 static void version_resp(struct hv_dynmem_device *dm,  in version_resp()  argument
1413 		complete(&dm->host_event);  in version_resp()
1423 	if (dm->next_version == 0)  in version_resp()
1430 	version_req.version.version = dm->next_version;  in version_resp()
1431 	dm->version = version_req.version.version;  in version_resp()
1439 		dm->next_version = DYNMEM_PROTOCOL_VERSION_WIN7;  in version_resp()
1443 		dm->next_version = 0;  in version_resp()
1447 	ret = vmbus_sendpacket(dm->dev->channel, &version_req,  in version_resp()
1458 	dm->state = DM_INIT_ERROR;  in version_resp()
1459 	complete(&dm->host_event);  in version_resp()
1462 static void cap_resp(struct hv_dynmem_device *dm,  in cap_resp()  argument
1467 		dm->state = DM_INIT_ERROR;  in cap_resp()
1469 	complete(&dm->host_event);  in cap_resp()
1479 	struct hv_dynmem_device *dm = hv_get_drvdata(dev);  in balloon_onchannelcallback()  local
1495 			version_resp(dm,  in balloon_onchannelcallback()
1500 			cap_resp(dm,  in balloon_onchannelcallback()
1510 			if (dm->state == DM_BALLOON_UP)  in balloon_onchannelcallback()
1513 			dm->state = DM_BALLOON_UP;  in balloon_onchannelcallback()
1524 			dm->state = DM_BALLOON_DOWN;  in balloon_onchannelcallback()
1525 			balloon_down(dm,  in balloon_onchannelcallback()
1530 			if (dm->state == DM_HOT_ADD)  in balloon_onchannelcallback()
1532 			dm->state = DM_HOT_ADD;  in balloon_onchannelcallback()
1539 				dm->host_specified_ha_region = false;  in balloon_onchannelcallback()
1541 				dm->ha_wrk.ha_page_range = *ha_pg_range;  in balloon_onchannelcallback()
1542 				dm->ha_wrk.ha_region_range.page_range = 0;  in balloon_onchannelcallback()
1549 				dm->host_specified_ha_region = true;  in balloon_onchannelcallback()
1552 				dm->ha_wrk.ha_page_range = *ha_pg_range;  in balloon_onchannelcallback()
1553 				dm->ha_wrk.ha_region_range = *ha_region;  in balloon_onchannelcallback()
1559 			process_info(dm, (struct dm_info_msg *)dm_msg);  in balloon_onchannelcallback()
1847 	struct hv_dynmem_device *dm = f->private;  in hv_balloon_debug_show()  local
1851 			DYNMEM_MAJOR_VERSION(dm->version),  in hv_balloon_debug_show()
1852 			DYNMEM_MINOR_VERSION(dm->version));  in hv_balloon_debug_show()
1863 	seq_printf(f, "%-22s: %u", "state", dm->state);  in hv_balloon_debug_show()
1864 	switch (dm->state) {  in hv_balloon_debug_show()
1892 	seq_printf(f, "%-22s: %u\n", "pages_added", dm->num_pages_added);  in hv_balloon_debug_show()
1895 	seq_printf(f, "%-22s: %u\n", "pages_onlined", dm->num_pages_onlined);  in hv_balloon_debug_show()
1898 	seq_printf(f, "%-22s: %u\n", "pages_ballooned", dm->num_pages_ballooned);  in hv_balloon_debug_show()
1901 		   get_pages_committed(dm));  in hv_balloon_debug_show()
1904 		   dm->max_dynamic_page_count);  in hv_balloon_debug_show()
2015 	struct hv_dynmem_device *dm = hv_get_drvdata(dev);  in balloon_remove()  local
2019 	if (dm->num_pages_ballooned != 0)  in balloon_remove()
2020 		pr_warn("Ballooned pages: %d\n", dm->num_pages_ballooned);  in balloon_remove()
2022 	hv_balloon_debugfs_exit(dm);  in balloon_remove()
2024 	cancel_work_sync(&dm->balloon_wrk.wrk);  in balloon_remove()
2025 	cancel_work_sync(&dm->ha_wrk.wrk);  in balloon_remove()
2027 	kthread_stop(dm->thread);  in balloon_remove()
2044 	list_for_each_entry_safe(has, tmp, &dm->ha_region_list, list) {  in balloon_remove()
2056 	struct hv_dynmem_device *dm = hv_get_drvdata(hv_dev);  in balloon_suspend()  local
2060 	cancel_work_sync(&dm->balloon_wrk.wrk);  in balloon_suspend()
2061 	cancel_work_sync(&dm->ha_wrk.wrk);  in balloon_suspend()
2063 	if (dm->thread) {  in balloon_suspend()
2064 		kthread_stop(dm->thread);  in balloon_suspend()
2065 		dm->thread = NULL;  in balloon_suspend()