Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h
new file mode 100644
index 000000000..f054d0360
--- /dev/null
+++ b/include/linux/sched/user.h
@@ -0,0 +1,56 @@
+/* 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_PERF_EVENTS) || defined(CONFIG_BPF_SYSCALL) || \
+	defined(CONFIG_NET) || defined(CONFIG_IO_URING) || \
+	defined(CONFIG_VFIO_PCI_ZDEV_KVM)
+	atomic_long_t locked_vm;
+#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 */