45 void Devmapper::ioctlInit(struct dm_ioctl* io, size_t dataSize, const char* name, unsigned flags) {  in ioctlInit()  argument
46     memset(io, 0, dataSize);  in ioctlInit()
47     io->data_size = dataSize;  in ioctlInit()
48     io->data_start = sizeof(struct dm_ioctl);  in ioctlInit()
49     io->version[0] = 4;  in ioctlInit()
50     io->version[1] = 0;  in ioctlInit()
51     io->version[2] = 0;  in ioctlInit()
52     io->flags = flags;  in ioctlInit()
54         size_t ret = strlcpy(io->name, name, sizeof(io->name));  in ioctlInit()
55         if (ret >= sizeof(io->name)) abort();  in ioctlInit()
77     struct dm_ioctl* io = (struct dm_ioctl*)buffer;  in create()  local
80     ioctlInit(io, DEVMAPPER_BUFFER_SIZE, name, 0);  in create()
82     if (ioctl(fd, DM_DEV_CREATE, io)) {  in create()
90     ioctlInit(io, DEVMAPPER_BUFFER_SIZE, name, 0);  in create()
97     if (ioctl(fd, DM_DEV_SET_GEOMETRY, io)) {  in create()
105     ioctlInit(io, DEVMAPPER_BUFFER_SIZE, name, 0);  in create()
106     if (ioctl(fd, DM_DEV_STATUS, io)) {  in create()
113     unsigned minor = (io->dev & 0xff) | ((io->dev >> 12) & 0xfff00);  in create()
120     ioctlInit(io, DEVMAPPER_BUFFER_SIZE, name, DM_STATUS_TABLE_FLAG);  in create()
121     io->target_count = 1;  in create()
137     if (ioctl(fd, DM_TABLE_LOAD, io)) {  in create()
145     ioctlInit(io, DEVMAPPER_BUFFER_SIZE, name, 0);  in create()
147     if (ioctl(fd, DM_DEV_SUSPEND, io)) {  in create()
177     struct dm_ioctl* io = (struct dm_ioctl*)buffer;  in destroy()  local
180     ioctlInit(io, DEVMAPPER_BUFFER_SIZE, name, 0);  in destroy()
182     if (ioctl(fd, DM_DEV_REMOVE, io)) {  in destroy()
220     struct dm_ioctl* io = (struct dm_ioctl*)buffer;  in destroyAll()  local
221     ioctlInit(io, (1024 * 64), NULL, 0);  in destroyAll()
223     if (ioctl(fd, DM_LIST_DEVICES, io)) {  in destroyAll()
231     struct dm_name_list* n = (struct dm_name_list*)(((char*)buffer) + io->data_start);  in destroyAll()