19 #include <linux/file.h>
226 	 * "struct file" needs to be available at the right moment.  in close_pdeo()
235 		struct file *file;  in close_pdeo()  local
241 		file = pdeo->file;  in close_pdeo()
242 		pde->proc_ops->proc_release(file_inode(file), file);  in close_pdeo()
275 static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence)  in proc_reg_llseek()  argument
277 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_llseek()
281 		return pde->proc_ops->proc_lseek(file, offset, whence);  in proc_reg_llseek()
283 		rv = pde->proc_ops->proc_lseek(file, offset, whence);  in proc_reg_llseek()
304 static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t cou…  in pde_read()  argument
308 		return read(file, buf, count, ppos);  in pde_read()
312 static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)  in proc_reg_read()  argument
314 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_read()
318 		return pde_read(pde, file, buf, count, ppos);  in proc_reg_read()
320 		rv = pde_read(pde, file, buf, count, ppos);  in proc_reg_read()
326 static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, siz…  in pde_write()  argument
330 		return write(file, buf, count, ppos);  in pde_write()
334 static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)  in proc_reg_write()  argument
336 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_write()
340 		return pde_write(pde, file, buf, count, ppos);  in proc_reg_write()
342 		rv = pde_write(pde, file, buf, count, ppos);  in proc_reg_write()
348 static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *p…  in pde_poll()  argument
352 		return poll(file, pts);  in pde_poll()
356 static __poll_t proc_reg_poll(struct file *file, struct poll_table_struct *pts)  in proc_reg_poll()  argument
358 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_poll()
362 		return pde_poll(pde, file, pts);  in proc_reg_poll()
364 		rv = pde_poll(pde, file, pts);  in proc_reg_poll()
370 static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned lon…  in pde_ioctl()  argument
374 		return ioctl(file, cmd, arg);  in pde_ioctl()
378 static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)  in proc_reg_unlocked_ioctl()  argument
380 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_unlocked_ioctl()
384 		return pde_ioctl(pde, file, cmd, arg);  in proc_reg_unlocked_ioctl()
386 		rv = pde_ioctl(pde, file, cmd, arg);  in proc_reg_unlocked_ioctl()
393 static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsig…  in pde_compat_ioctl()  argument
397 		return compat_ioctl(file, cmd, arg);  in pde_compat_ioctl()
401 static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)  in proc_reg_compat_ioctl()  argument
403 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_compat_ioctl()
406 		return pde_compat_ioctl(pde, file, cmd, arg);  in proc_reg_compat_ioctl()
408 		rv = pde_compat_ioctl(pde, file, cmd, arg);  in proc_reg_compat_ioctl()
415 static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma)  in pde_mmap()  argument
419 		return mmap(file, vma);  in pde_mmap()
423 static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma)  in proc_reg_mmap()  argument
425 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_mmap()
429 		return pde_mmap(pde, file, vma);  in proc_reg_mmap()
431 		rv = pde_mmap(pde, file, vma);  in proc_reg_mmap()
438 pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr,  in pde_get_unmapped_area()  argument
443 		return pde->proc_ops->proc_get_unmapped_area(file, orig_addr, len, pgoff, flags);  in pde_get_unmapped_area()
446 	return mm_get_unmapped_area(current->mm, file, orig_addr, len, pgoff, flags);  in pde_get_unmapped_area()
453 proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr,  in proc_reg_get_unmapped_area()  argument
457 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_get_unmapped_area()
461 		return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags);  in proc_reg_get_unmapped_area()
463 		rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags);  in proc_reg_get_unmapped_area()
469 static int proc_reg_open(struct inode *inode, struct file *file)  in proc_reg_open()  argument
477 		file->f_mode &= ~FMODE_LSEEK;  in proc_reg_open()
482 			rv = open(inode, file);  in proc_reg_open()
492 	 * 2) rmmod isn't blocked by opening file in /proc and sitting on  in proc_reg_open()
495 	 * Save every "struct file" with custom ->release hook.  in proc_reg_open()
511 		rv = open(inode, file);  in proc_reg_open()
516 			pdeo->file = file;  in proc_reg_open()
531 static int proc_reg_release(struct inode *inode, struct file *file)  in proc_reg_release()  argument
539 			return release(inode, file);  in proc_reg_release()
546 		if (pdeo->file == file) {  in proc_reg_release()