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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_SCHED_USER_H#define _LINUX_SCHED_USER_H
#include <linux/uidgid.h>#include <linux/atomic.h>#include <linux/percpu_counter.h>#include <linux/refcount.h>#include <linux/ratelimit.h>
/* * Some day this will be a full-fledged user tracking system.. */struct user_struct { refcount_t __count; /* reference count */#ifdef CONFIG_EPOLL struct percpu_counter epoll_watches; /* The number of file descriptors currently watched */#endif unsigned long unix_inflight; /* How many files in flight in unix sockets */ atomic_long_t pipe_bufs; /* how many pages are allocated in pipe buffers */
/* Hash table maintenance information */ struct hlist_node uidhash_node; kuid_t uid;
#if defined(CONFIG_NET) || defined(CONFIG_IO_URING) || \ defined(CONFIG_VFIO_PCI_ZDEV_KVM) || IS_ENABLED(CONFIG_IOMMUFD) || \ defined(CONFIG_SECRETMEM) atomic_long_t locked_vm; /* pinned pages charged to RLIMIT_MEMLOCK */#endif#ifdef CONFIG_PERF_EVENTS atomic_long_t perf_mlock; /* perf buffer pages within perf_event_mlock_kb */#endif#ifdef CONFIG_WATCH_QUEUE atomic_t nr_watches; /* The number of watches this user currently has */#endif
/* Miscellaneous per-user rate limit */ struct ratelimit_state ratelimit;};
extern int uids_sysfs_init(void);
extern struct user_struct *find_user(kuid_t);
extern struct user_struct root_user;#define INIT_USER (&root_user)
/* per-UID process charging. */extern struct user_struct * alloc_uid(kuid_t);static inline struct user_struct *get_uid(struct user_struct *u){ refcount_inc(&u->__count); return u;}extern void free_uid(struct user_struct *);
#endif /* _LINUX_SCHED_USER_H */