migration: Report when bdrv_inactivate_all fails
commitc232bf58cb1169f1bd80c519e2cc4218e525a556
authorDr. David Alan Gilbert <dgilbert@redhat.com>
Tue, 22 Aug 2017 17:02:12 +0000 (22 18:02 +0100)
committerDr. David Alan Gilbert <dgilbert@redhat.com>
Wed, 6 Sep 2017 13:25:26 +0000 (6 14:25 +0100)
tree8fc5c74f72587615d6db45a77892a44597587865
parentb07d1c2f5607489d4d4a6a65ce36a3e896ac065e
migration: Report when bdrv_inactivate_all fails

If the bdrv_inactivate_all fails near the end of the migration,
the migration will fail and often the only diagnostics in the log
are an I/O error which you can't distinguish from an error on
the socket connection.

Add an error so we know when it's actually a block problem.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20170822170212.27347-1-dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
migration/savevm.c