19 #include <linux/file.h>
226 	 * "struct file" needs to be available at the right moment.  in close_pdeo()
238 		struct file *file;  in close_pdeo()  local
243 		file = pdeo->file;  in close_pdeo()
244 		pde->proc_ops->proc_release(file_inode(file), file);  in close_pdeo()
276 static loff_t proc_reg_llseek(struct file *file, loff_t offset, int whence)  in proc_reg_llseek()  argument
278 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_llseek()
282 		return pde->proc_ops->proc_lseek(file, offset, whence);  in proc_reg_llseek()
284 		rv = pde->proc_ops->proc_lseek(file, offset, whence);  in proc_reg_llseek()
305 static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t cou…  in pde_read()  argument
311 		return read(file, buf, count, ppos);  in pde_read()
315 static ssize_t proc_reg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)  in proc_reg_read()  argument
317 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_read()
321 		return pde_read(pde, file, buf, count, ppos);  in proc_reg_read()
323 		rv = pde_read(pde, file, buf, count, ppos);  in proc_reg_read()
329 static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, siz…  in pde_write()  argument
335 		return write(file, buf, count, ppos);  in pde_write()
339 static ssize_t proc_reg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)  in proc_reg_write()  argument
341 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_write()
345 		return pde_write(pde, file, buf, count, ppos);  in proc_reg_write()
347 		rv = pde_write(pde, file, buf, count, ppos);  in proc_reg_write()
353 static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *p…  in pde_poll()  argument
359 		return poll(file, pts);  in pde_poll()
363 static __poll_t proc_reg_poll(struct file *file, struct poll_table_struct *pts)  in proc_reg_poll()  argument
365 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_poll()
369 		return pde_poll(pde, file, pts);  in proc_reg_poll()
371 		rv = pde_poll(pde, file, pts);  in proc_reg_poll()
377 static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned lon…  in pde_ioctl()  argument
383 		return ioctl(file, cmd, arg);  in pde_ioctl()
387 static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)  in proc_reg_unlocked_ioctl()  argument
389 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_unlocked_ioctl()
393 		return pde_ioctl(pde, file, cmd, arg);  in proc_reg_unlocked_ioctl()
395 		rv = pde_ioctl(pde, file, cmd, arg);  in proc_reg_unlocked_ioctl()
402 static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsig…  in pde_compat_ioctl()  argument
408 		return compat_ioctl(file, cmd, arg);  in pde_compat_ioctl()
412 static long proc_reg_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)  in proc_reg_compat_ioctl()  argument
414 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_compat_ioctl()
417 		return pde_compat_ioctl(pde, file, cmd, arg);  in proc_reg_compat_ioctl()
419 		rv = pde_compat_ioctl(pde, file, cmd, arg);  in proc_reg_compat_ioctl()
426 static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma)  in pde_mmap()  argument
432 		return mmap(file, vma);  in pde_mmap()
436 static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma)  in proc_reg_mmap()  argument
438 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_mmap()
442 		return pde_mmap(pde, file, vma);  in proc_reg_mmap()
444 		rv = pde_mmap(pde, file, vma);  in proc_reg_mmap()
451 pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr,  in pde_get_unmapped_area()  argument
463 		return get_area(file, orig_addr, len, pgoff, flags);  in pde_get_unmapped_area()
468 proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr,  in proc_reg_get_unmapped_area()  argument
472 	struct proc_dir_entry *pde = PDE(file_inode(file));  in proc_reg_get_unmapped_area()
476 		return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags);  in proc_reg_get_unmapped_area()
478 		rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags);  in proc_reg_get_unmapped_area()
484 static int proc_reg_open(struct inode *inode, struct file *file)  in proc_reg_open()  argument
495 			rv = open(inode, file);  in proc_reg_open()
505 	 * 2) rmmod isn't blocked by opening file in /proc and sitting on  in proc_reg_open()
508 	 * Save every "struct file" with custom ->release hook.  in proc_reg_open()
524 		rv = open(inode, file);  in proc_reg_open()
529 			pdeo->file = file;  in proc_reg_open()
544 static int proc_reg_release(struct inode *inode, struct file *file)  in proc_reg_release()  argument
554 			return release(inode, file);  in proc_reg_release()
561 		if (pdeo->file == file) {  in proc_reg_release()