| commit | 528ba772f13eb6cebf8cc6bfa049415ff19196b4 | |
| author | Eric Blake <eblake@redhat.com> | |
| Mon, 3 Feb 2020 22:36:37 +0000 (3 16:36 -0600) | ||
| committer | Eric Blake <eblake@redhat.com> | |
| Mon, 10 Feb 2020 19:57:29 +0000 (10 13:57 -0600) | ||
| tree | 15302b4613775adf045a785d2dc31af0f633eea0 | treesnapshot (tar.gz zip) |
| parent | 17128128a11526c35f38e09a9c1672d2d94242fb | commitdiff |
protocol: Wire up backend support for NBD_INFO_INIT_STATE
The NBD protocol is adding an extension to let servers advertise
initialization state to the client: whether the image contains holes,
and whether it is known to read as all zeroes. This patch wires up
the backend to send the data, although it won't be until the next
couple of patches allow filters and plugins to report through new
callbacks that a client finally gets to see new bits set.
Signed-off-by: Eric Blake <eblake@redhat.com>
The NBD protocol is adding an extension to let servers advertise
initialization state to the client: whether the image contains holes,
and whether it is known to read as all zeroes. This patch wires up
the backend to send the data, although it won't be until the next
couple of patches allow filters and plugins to report through new
callbacks that a client finally gets to see new bits set.
Signed-off-by: Eric Blake <eblake@redhat.com>