Dr. David Alan Gilbert d688c62d09 Postcopy: Avoid 0 length discards
The discard code in migration/ram.c would send request for
zero length discards in the case where no discards were needed.
It doesn't appear to have had any bad effect.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Message-id: 1465816605-29488-2-git-send-email-dgilbert@redhat.com
Message-Id: <1465816605-29488-2-git-send-email-dgilbert@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-16 09:50:07 +05:30
..
2016-06-16 09:50:07 +05:30
2016-06-13 11:50:53 +01:00