io_sysctl
struct io_sysctl sdrive;
tocopy = offsetof(struct io_sysctl, busy);
mib[2] = sizeof(struct io_sysctl);
size = ndrive * sizeof(struct io_sysctl);
count = size / sizeof(struct io_sysctl);
mib[2] = sizeof(struct io_sysctl);
ndrive = size / sizeof(struct io_sysctl);
drives = (struct io_sysctl *)malloc(size);
mib[2] = sizeof(struct io_sysctl);
ndrive = size / sizeof(struct io_sysctl);
static struct io_sysctl *drives = NULL;
struct io_sysctl *data;