static int tcp_cgroup_write(struct cgroup *cont, struct cftype *cft,
const char *buffer)
{
struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
unsigned long long val;
int ret = 0;
switch (cft->private) {
case RES_LIMIT:
/* see memcontrol.c */
ret = res_counter_memparse_write_strategy(buffer, &val);
if (ret)
break;
ret = tcp_update_limit(memcg, val);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static ssize_t tcp_cgroup_write(struct kernfs_open_file *of,
char *buf, size_t nbytes, loff_t off)
{
struct mem_cgroup *memcg = mem_cgroup_from_css(of_css(of));
unsigned long long val;
int ret = 0;
buf = strstrip(buf);
switch (of_cft(of)->private) {
case RES_LIMIT:
/* see memcontrol.c */
ret = res_counter_memparse_write_strategy(buf, &val);
if (ret)
break;
ret = tcp_update_limit(memcg, val);
break;
default:
ret = -EINVAL;
break;
}
return ret ?: nbytes;
}
