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git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/blob - include/linux/shm.h
4 #include <linux/list.h>
6 #include <uapi/linux/shm.h>
7 #include <asm/shmparam.h>
9 struct shmid_kernel
/* private to the kernel */
11 struct kern_ipc_perm shm_perm
;
12 struct file
*shm_file
;
13 unsigned long shm_nattch
;
14 unsigned long shm_segsz
;
20 struct user_struct
*mlock_user
;
22 /* The task created the shm object. NULL if the task is dead. */
23 struct task_struct
*shm_creator
;
24 struct list_head shm_clist
; /* list by creator */
27 /* shm_mode upper byte flags */
28 #define SHM_DEST 01000 /* segment will be destroyed on last detach */
29 #define SHM_LOCKED 02000 /* segment will not be swapped */
33 struct list_head shm_clist
;
36 long do_shmat(int shmid
, char __user
*shmaddr
, int shmflg
, unsigned long *addr
,
37 unsigned long shmlba
);
38 bool is_file_shm_hugepages(struct file
*file
);
39 void exit_shm(struct task_struct
*task
);
40 #define shm_init_task(task) INIT_LIST_HEAD(&(task)->sysvshm.shm_clist)
46 static inline long do_shmat(int shmid
, char __user
*shmaddr
,
47 int shmflg
, unsigned long *addr
,
52 static inline bool is_file_shm_hugepages(struct file
*file
)
56 static inline void exit_shm(struct task_struct
*task
)
59 static inline void shm_init_task(struct task_struct
*task
)
64 #endif /* _LINUX_SHM_H_ */