On 11/18/20 12:04 PM, Vladimir Sementsov-Ogievskiy wrote:
> It will be used to stop retrying NBD requests on mirror cancel.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
> ---
> include/block/block.h | 3 +++
> include/block/block_int.h | 9 +++++++++
> block/io.c | 11 +++++++++++
> 3 files changed, 23 insertions(+)
>
How does this relate to the recent addition of the QMP yank command?
> +++ b/include/block/block_int.h
> @@ -344,6 +344,15 @@ struct BlockDriver {
> bool want_zero, int64_t offset, int64_t bytes, int64_t *pnum,
> int64_t *map, BlockDriverState **file);
>
> + /*
> + * This informs the driver that we are not more interested in in-flight
that we are no longer interested in the result of in-flight requests, so
> + * requests results, so don't waste the time if possible.
> + *
> + * The example usage is to not wait for nbd target nodedreconnect
> timeout on
> + * job-cancel.
One example usage is to avoid waiting for an nbd target node reconnect
timeout during job-cancel.
Reviewed-by: Eric Blake <ebl...@redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
