Re: Use of VM_IOREMAP in xenbus

From: JÃrgen GroÃ
Date: Thu Apr 09 2020 - 02:44:28 EST


Adjusting recipient list (dropping David, new mail addresses for Wei and
Paul).

On 09.04.20 08:18, Christoph Hellwig wrote:
Hi Wei,

commit ccc9d90a9a8b5 ("xenbus_client: Extend interface to support
multi-page ring") addes a use of vmap in what is now
xenbus_map_ring_valloc_hvm, and uses the VM_IOREMAP flag that is
only really intended for implementing ioremap. Do you remember
what the reason is that this flag was used?


Juergen