2050 static ssize_t generic_file_buffered_read(struct kiocb *iocb,  in generic_file_buffered_read()  argument
2053 	struct file *filp = iocb->ki_filp;  in generic_file_buffered_read()
2057 	loff_t *ppos = &iocb->ki_pos;  in generic_file_buffered_read()
2090 			if (iocb->ki_flags & IOCB_NOWAIT)  in generic_file_buffered_read()
2105 			if (iocb->ki_flags & IOCB_NOWAIT) {  in generic_file_buffered_read()
2312 generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)  in generic_file_read_iter()  argument
2320 	if (iocb->ki_flags & IOCB_DIRECT) {  in generic_file_read_iter()
2321 		struct file *file = iocb->ki_filp;  in generic_file_read_iter()
2327 		if (iocb->ki_flags & IOCB_NOWAIT) {  in generic_file_read_iter()
2328 			if (filemap_range_has_page(mapping, iocb->ki_pos,  in generic_file_read_iter()
2329 						   iocb->ki_pos + count - 1))  in generic_file_read_iter()
2333 						iocb->ki_pos,  in generic_file_read_iter()
2334 					        iocb->ki_pos + count - 1);  in generic_file_read_iter()
2341 		retval = mapping->a_ops->direct_IO(iocb, iter);  in generic_file_read_iter()
2343 			iocb->ki_pos += retval;  in generic_file_read_iter()
2357 		if (retval < 0 || !count || iocb->ki_pos >= size ||  in generic_file_read_iter()
2362 	retval = generic_file_buffered_read(iocb, iter, retval);  in generic_file_read_iter()
2925 inline ssize_t generic_write_checks(struct kiocb *iocb, struct iov_iter *from)  in generic_write_checks()  argument
2927 	struct file *file = iocb->ki_filp;  in generic_write_checks()
2936 	if (iocb->ki_flags & IOCB_APPEND)  in generic_write_checks()
2937 		iocb->ki_pos = i_size_read(inode);  in generic_write_checks()
2939 	pos = iocb->ki_pos;  in generic_write_checks()
2941 	if ((iocb->ki_flags & IOCB_NOWAIT) && !(iocb->ki_flags & IOCB_DIRECT))  in generic_write_checks()
2945 		if (iocb->ki_pos >= limit) {  in generic_write_checks()
2999 generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from)  in generic_file_direct_write()  argument
3001 	struct file	*file = iocb->ki_filp;  in generic_file_direct_write()
3004 	loff_t		pos = iocb->ki_pos;  in generic_file_direct_write()
3012 	if (iocb->ki_flags & IOCB_NOWAIT) {  in generic_file_direct_write()
3042 	written = mapping->a_ops->direct_IO(iocb, from);  in generic_file_direct_write()
3068 		iocb->ki_pos = pos;  in generic_file_direct_write()
3199 ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from)  in __generic_file_write_iter()  argument
3201 	struct file *file = iocb->ki_filp;  in __generic_file_write_iter()
3218 	if (iocb->ki_flags & IOCB_DIRECT) {  in __generic_file_write_iter()
3221 		written = generic_file_direct_write(iocb, from);  in __generic_file_write_iter()
3232 		status = generic_perform_write(file, from, pos = iocb->ki_pos);  in __generic_file_write_iter()
3252 			iocb->ki_pos = endbyte + 1;  in __generic_file_write_iter()
3264 		written = generic_perform_write(file, from, iocb->ki_pos);  in __generic_file_write_iter()
3266 			iocb->ki_pos += written;  in __generic_file_write_iter()
3283 ssize_t generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from)  in generic_file_write_iter()  argument
3285 	struct file *file = iocb->ki_filp;  in generic_file_write_iter()
3290 	ret = generic_write_checks(iocb, from);  in generic_file_write_iter()
3292 		ret = __generic_file_write_iter(iocb, from);  in generic_file_write_iter()
3296 		ret = generic_write_sync(iocb, ret);  in generic_file_write_iter()