Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 */
14struct 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 */