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1/* SPDX-License-Identifier: LGPL-2.1 WITH Linux-syscall-note */2/* cgroupstats.h - exporting per-cgroup statistics3 *4 * Copyright IBM Corporation, 20075 * Author Balbir Singh <balbir@linux.vnet.ibm.com>6 *7 * This program is free software; you can redistribute it and/or modify it8 * under the terms of version 2.1 of the GNU Lesser General Public License9 * as published by the Free Software Foundation.10 *11 * This program is distributed in the hope that it would be useful, but12 * WITHOUT ANY WARRANTY; without even the implied warranty of13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.14 */15 16#ifndef _LINUX_CGROUPSTATS_H17#define _LINUX_CGROUPSTATS_H18 19#include <linux/types.h>20#include <linux/taskstats.h>21 22/*23 * Data shared between user space and kernel space on a per cgroup24 * basis. This data is shared using taskstats.25 *26 * Most of these states are derived by looking at the task->state value27 *28 * Each member is aligned to a 8 byte boundary.29 */30struct cgroupstats {31 __u64 nr_sleeping; /* Number of tasks sleeping */32 __u64 nr_running; /* Number of tasks running */33 __u64 nr_stopped; /* Number of tasks in stopped state */34 __u64 nr_uninterruptible; /* Number of tasks in uninterruptible */35 /* state */36 __u64 nr_io_wait; /* Number of tasks waiting on IO */37};38 39/*40 * Commands sent from userspace41 * Not versioned. New commands should only be inserted at the enum's end42 * prior to __CGROUPSTATS_CMD_MAX43 */44 45enum {46 CGROUPSTATS_CMD_UNSPEC = __TASKSTATS_CMD_MAX, /* Reserved */47 CGROUPSTATS_CMD_GET, /* user->kernel request/get-response */48 CGROUPSTATS_CMD_NEW, /* kernel->user event */49 __CGROUPSTATS_CMD_MAX,50};51 52#define CGROUPSTATS_CMD_MAX (__CGROUPSTATS_CMD_MAX - 1)53 54enum {55 CGROUPSTATS_TYPE_UNSPEC = 0, /* Reserved */56 CGROUPSTATS_TYPE_CGROUP_STATS, /* contains name + stats */57 __CGROUPSTATS_TYPE_MAX,58};59 60#define CGROUPSTATS_TYPE_MAX (__CGROUPSTATS_TYPE_MAX - 1)61 62enum {63 CGROUPSTATS_CMD_ATTR_UNSPEC = 0,64 CGROUPSTATS_CMD_ATTR_FD,65 __CGROUPSTATS_CMD_ATTR_MAX,66};67 68#define CGROUPSTATS_CMD_ATTR_MAX (__CGROUPSTATS_CMD_ATTR_MAX - 1)69 70#endif /* _LINUX_CGROUPSTATS_H */71