1 /* cgroupstats.h - exporting per-cgroup statistics
3 * Copyright IBM Corporation, 2007
4 * Author Balbir Singh <balbir@linux.vnet.ibm.com>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2.1 of the GNU Lesser General Public License
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it would be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 #ifndef _LINUX_CGROUPSTATS_H
16 #define _LINUX_CGROUPSTATS_H
18 #include <linux/taskstats.h>
21 * Data shared between user space and kernel space on a per cgroup
22 * basis. This data is shared using taskstats.
24 * Most of these states are derived by looking at the task->state value
25 * For the nr_io_wait state, a flag in the delay accounting structure
26 * indicates that the task is waiting on IO
28 * Each member is aligned to a 8 byte boundary.
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 */
36 __u64 nr_io_wait; /* Number of tasks waiting on IO */
40 * Commands sent from userspace
41 * Not versioned. New commands should only be inserted at the enum's end
42 * prior to __CGROUPSTATS_CMD_MAX
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,
52 #define CGROUPSTATS_CMD_MAX (__CGROUPSTATS_CMD_MAX - 1)
55 CGROUPSTATS_TYPE_UNSPEC = 0, /* Reserved */
56 CGROUPSTATS_TYPE_CGROUP_STATS, /* contains name + stats */
57 __CGROUPSTATS_TYPE_MAX,
60 #define CGROUPSTATS_TYPE_MAX (__CGROUPSTATS_TYPE_MAX - 1)
63 CGROUPSTATS_CMD_ATTR_UNSPEC = 0,
64 CGROUPSTATS_CMD_ATTR_FD,
65 __CGROUPSTATS_CMD_ATTR_MAX,
68 #define CGROUPSTATS_CMD_ATTR_MAX (__CGROUPSTATS_CMD_ATTR_MAX - 1)
70 #endif /* _LINUX_CGROUPSTATS_H */