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

#ifndef _LINUX_IPC_H
#define _LINUX_IPC_H

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