| /* 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 */ |