[mirror_ubuntu-focal-kernel.git] / include / linux / ipc.h

#ifndef _LINUX_IPC_H
#define _LINUX_IPC_H

#include <linux/spinlock.h>
#include <linux/uidgid.h>
#include <linux/rhashtable.h>
#include <uapi/linux/ipc.h>
#include <linux/refcount.h>

#define IPCMNI 32768  /* <= MAX_INT limit for ipc arrays (including sysctl changes) */

/* used by in-kernel data structures */
struct kern_ipc_perm {
	spinlock_t	lock;
	bool		deleted;
	int		id;
	key_t		key;
	kuid_t		uid;
	kgid_t		gid;
	kuid_t		cuid;
	kgid_t		cgid;
	umode_t		mode;
	unsigned long	seq;
	void		*security;

	struct rhash_head khtnode;

	struct rcu_head rcu;
	refcount_t refcount;
} ____cacheline_aligned_in_smp __randomize_layout;

#endif /* _LINUX_IPC_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_IPC_H
	2	#define _LINUX_IPC_H
	3
0a3021f4	4	#include <linux/spinlock.h>
1efdb69b	5	#include <linux/uidgid.h>
0cfb6aee	6	#include <linux/rhashtable.h>
607ca46e	7	#include <uapi/linux/ipc.h>
9405c03e	8	#include <linux/refcount.h>
b119f13f	9
1da177e4 LT	10	#define IPCMNI 32768 /* <= MAX_INT limit for ipc arrays (including sysctl changes) */
	11
	12	/* used by in-kernel data structures */
60f3e00d	13	struct kern_ipc_perm {
1da177e4	14	spinlock_t lock;
72a8ff2f	15	bool deleted;
7ca7e564	16	int id;
1da177e4	17	key_t key;
1efdb69b EB	18	kuid_t uid;
	19	kgid_t gid;
	20	kuid_t cuid;
	21	kgid_t cgid;
60f3e00d	22	umode_t mode;
1da177e4 LT	23	unsigned long seq;
1da177e4 LT	24	void *security;
dba4cdd3	25
0cfb6aee GK	26	struct rhash_head khtnode;
0cfb6aee GK	27
dba4cdd3	28	struct rcu_head rcu;
9405c03e	29	refcount_t refcount;
3859a271	30	} ____cacheline_aligned_in_smp __randomize_layout;
1da177e4	31
1da177e4	32	#endif /* _LINUX_IPC_H */