1 #ifndef _LINUX_SCHED_USER_H
2 #define _LINUX_SCHED_USER_H
4 #include <linux/sched.h>
9 * Some day this will be a full-fledged user tracking system..
12 atomic_t __count; /* reference count */
13 atomic_t processes; /* How many processes does this user have? */
14 atomic_t sigpending; /* How many pending signals does this user have? */
15 #ifdef CONFIG_FANOTIFY
16 atomic_t fanotify_listeners;
19 atomic_long_t epoll_watches; /* The number of file descriptors currently watched */
21 #ifdef CONFIG_POSIX_MQUEUE
22 /* protected by mq_lock */
23 unsigned long mq_bytes; /* How many bytes can be allocated to mqueue? */
25 unsigned long locked_shm; /* How many pages of mlocked shm ? */
26 unsigned long unix_inflight; /* How many files in flight in unix sockets */
27 atomic_long_t pipe_bufs; /* how many pages are allocated in pipe buffers */
30 struct key *uid_keyring; /* UID specific keyring */
31 struct key *session_keyring; /* UID's default session keyring */
34 /* Hash table maintenance information */
35 struct hlist_node uidhash_node;
38 #if defined(CONFIG_PERF_EVENTS) || defined(CONFIG_BPF_SYSCALL)
39 atomic_long_t locked_vm;
43 extern int uids_sysfs_init(void);
45 extern struct user_struct *find_user(kuid_t);
47 extern struct user_struct root_user;
48 #define INIT_USER (&root_user)
51 /* per-UID process charging. */
52 extern struct user_struct * alloc_uid(kuid_t);
53 static inline struct user_struct *get_uid(struct user_struct *u)
55 atomic_inc(&u->__count);
58 extern void free_uid(struct user_struct *);
60 #endif /* _LINUX_SCHED_USER_H */