diff options
Diffstat (limited to 'include/linux/shm.h')
-rw-r--r-- | include/linux/shm.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/linux/shm.h b/include/linux/shm.h new file mode 100644 index 000000000..d8e69aed3 --- /dev/null +++ b/include/linux/shm.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_SHM_H_ +#define _LINUX_SHM_H_ + +#include <linux/list.h> +#include <asm/page.h> +#include <uapi/linux/shm.h> +#include <asm/shmparam.h> + +struct file; + +#ifdef CONFIG_SYSVIPC +struct sysv_shm { + struct list_head shm_clist; +}; + +long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr, + unsigned long shmlba); +bool is_file_shm_hugepages(struct file *file); +void exit_shm(struct task_struct *task); +#define shm_init_task(task) INIT_LIST_HEAD(&(task)->sysvshm.shm_clist) +#else +struct sysv_shm { + /* empty */ +}; + +static inline long do_shmat(int shmid, char __user *shmaddr, + int shmflg, unsigned long *addr, + unsigned long shmlba) +{ + return -ENOSYS; +} +static inline bool is_file_shm_hugepages(struct file *file) +{ + return false; +} +static inline void exit_shm(struct task_struct *task) +{ +} +static inline void shm_init_task(struct task_struct *task) +{ +} +#endif + +#endif /* _LINUX_SHM_H_ */ |