39 	return file->f_op->fop_flags & FOP_UNSIGNED_OFFSET;  in unsigned_offsets()
382 	return file->f_op->llseek(file, offset, whence);  in vfs_llseek()
488 	ret = filp->f_op->read_iter(&kiocb, &iter);  in new_sync_read()
521 	if (unlikely(!file->f_op->read_iter || file->f_op->read))  in __kernel_read()
527 	ret = file->f_op->read_iter(&kiocb, &iter);  in __kernel_read()
566 	if (file->f_op->read)  in vfs_read()
567 		ret = file->f_op->read(file, buf, count, pos);  in vfs_read()
568 	else if (file->f_op->read_iter)  in vfs_read()
590 	ret = filp->f_op->write_iter(&kiocb, &iter);  in new_sync_write()
611 	if (unlikely(!file->f_op->write_iter || file->f_op->write))  in __kernel_write_iter()
616 	ret = file->f_op->write_iter(&kiocb, from);  in __kernel_write_iter()
680 	if (file->f_op->write)  in vfs_write()
681 		ret = file->f_op->write(file, buf, count, pos);  in vfs_write()
682 	else if (file->f_op->write_iter)  in vfs_write()
832 		ret = filp->f_op->read_iter(&kiocb, iter);  in do_iter_readv_writev()
834 		ret = filp->f_op->write_iter(&kiocb, iter);  in do_iter_readv_writev()
854 			nr = filp->f_op->read(filp, iter_iov_addr(iter),  in do_loop_readv_writev()
857 			nr = filp->f_op->write(filp, iter_iov_addr(iter),  in do_loop_readv_writev()
881 	if (!file->f_op->read_iter)  in vfs_iocb_iter_read()
895 	ret = file->f_op->read_iter(iocb, iter);  in vfs_iocb_iter_read()
909 	if (!file->f_op->read_iter)  in vfs_iter_read()
941 	if (!file->f_op->write_iter)  in vfs_iocb_iter_write()
956 	ret = file->f_op->write_iter(iocb, iter);  in vfs_iocb_iter_write()
976 	if (!file->f_op->write_iter)  in vfs_iter_write()
1024 	if (file->f_op->read_iter)  in vfs_readv()
1063 	if (file->f_op->write_iter)  in vfs_writev()
1531 	} else if (file_out->f_op->copy_file_range) {  in generic_copy_file_checks()
1532 		if (file_in->f_op->copy_file_range !=  in generic_copy_file_checks()
1533 		    file_out->f_op->copy_file_range)  in generic_copy_file_checks()
1610 	if (!splice && file_out->f_op->copy_file_range) {  in vfs_copy_file_range()
1611 		ret = file_out->f_op->copy_file_range(file_in, pos_in,  in vfs_copy_file_range()
1614 	} else if (!splice && file_in->f_op->remap_file_range && samesb) {  in vfs_copy_file_range()
1615 		ret = file_in->f_op->remap_file_range(file_in, pos_in,  in vfs_copy_file_range()
1782 	      (file->f_op->fop_flags & FOP_BUFFER_WASYNC)))  in generic_write_checks_count()