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

/* SPDX-License-Identifier: GPL-2.0 */
#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
	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	#ifndef _LINUX_IPC_H
	3	#define _LINUX_IPC_H
	4
	5	#include <linux/spinlock.h>
	6	#include <linux/uidgid.h>
	7	#include <linux/rhashtable.h>
	8	#include <uapi/linux/ipc.h>
	9	#include <linux/refcount.h>
	10
	11	#define IPCMNI 32768 /* <= MAX_INT limit for ipc arrays (including sysctl changes) */
	12
	13	/* used by in-kernel data structures */
	14	struct kern_ipc_perm {
	15	spinlock_t lock;
	16	bool deleted;
	17	int id;
	18	key_t key;
	19	kuid_t uid;
	20	kgid_t gid;
	21	kuid_t cuid;
	22	kgid_t cgid;
	23	umode_t mode;
	24	unsigned long seq;
	25	void *security;
	26
	27	struct rhash_head khtnode;
	28
	29	struct rcu_head rcu;
	30	refcount_t refcount;
	31	} ____cacheline_aligned_in_smp __randomize_layout;
	32
	33	#endif /* _LINUX_IPC_H */