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45 lines
968 B
45 lines
968 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_SHM_H_ |
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#define _LINUX_SHM_H_ |
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#include <linux/list.h> |
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#include <asm/page.h> |
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#include <uapi/linux/shm.h> |
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#include <asm/shmparam.h> |
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struct file; |
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#ifdef CONFIG_SYSVIPC |
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struct sysv_shm { |
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struct list_head shm_clist; |
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}; |
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long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr, |
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unsigned long shmlba); |
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bool is_file_shm_hugepages(struct file *file); |
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void exit_shm(struct task_struct *task); |
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#define shm_init_task(task) INIT_LIST_HEAD(&(task)->sysvshm.shm_clist) |
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#else |
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struct sysv_shm { |
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/* empty */ |
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}; |
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static inline long do_shmat(int shmid, char __user *shmaddr, |
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int shmflg, unsigned long *addr, |
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unsigned long shmlba) |
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{ |
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return -ENOSYS; |
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} |
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static inline bool is_file_shm_hugepages(struct file *file) |
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{ |
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return false; |
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} |
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static inline void exit_shm(struct task_struct *task) |
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{ |
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} |
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static inline void shm_init_task(struct task_struct *task) |
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{ |
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} |
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#endif |
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#endif /* _LINUX_SHM_H_ */
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