/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_IPC_H
#define _LINUX_IPC_H

#include <linux/spinlock_types.h>
#include <linux/uidgid.h>
#include <linux/rhashtable-types.h>
#include <uapi/linux/ipc.h>
#include <linux/refcount.h>

/* 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 */