352 			loff_t pos, unsigned len, unsigned flags,  in simple_write_begin()  argument
359 	index = pos >> PAGE_CACHE_SHIFT;  in simple_write_begin()
360 	from = pos & (PAGE_CACHE_SIZE - 1);  in simple_write_begin()
375 	loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;  in simple_commit_write()  local
383 	if (pos > inode->i_size)  in simple_commit_write()
384 		i_size_write(inode, pos);  in simple_commit_write()
390 			loff_t pos, unsigned len, unsigned copied,  in simple_write_end()  argument
393 	unsigned from = pos & (PAGE_CACHE_SIZE - 1);  in simple_write_end()
527 	loff_t pos = *ppos;  in simple_read_from_buffer()  local
528 	if (pos < 0)  in simple_read_from_buffer()
530 	if (pos >= available)  in simple_read_from_buffer()
532 	if (count > available - pos)  in simple_read_from_buffer()
533 		count = available - pos;  in simple_read_from_buffer()
534 	if (copy_to_user(to, from + pos, count))  in simple_read_from_buffer()
536 	*ppos = pos + count;  in simple_read_from_buffer()
557 	loff_t pos = *ppos;  in memory_read_from_buffer()  local
559 	if (pos < 0)  in memory_read_from_buffer()
561 	if (pos >= available)  in memory_read_from_buffer()
563 	if (count > available - pos)  in memory_read_from_buffer()
564 		count = available - pos;  in memory_read_from_buffer()
565 	memcpy(to, from + pos, count);  in memory_read_from_buffer()
566 	*ppos = pos + count;  in memory_read_from_buffer()
608 ssize_t simple_transaction_read(struct file *file, char __user *buf, size_t size, loff_t *pos)  in simple_transaction_read()  argument
614 	return simple_read_from_buffer(buf, size, pos, ar->data, ar->size);  in simple_transaction_read()