函数逻辑报告

函数名称：group_get_from_fd - get a cgroup pointer from a fd*@fd: fd obtained by open(cgroup2_dir)* Find the cgroup from a fd which should be obtained* by opening a cgroup directory. Returns a pointer to the* cgroup on success. ERR_PTR is returned if the cgroup

函数原型：struct cgroup *cgroup_get_from_fd(int fd)

返回类型：struct cgroup

参数：