tree 03ea275a3bcf5089ffaa04b205de50b009734a5e
parent 67da1dc5ce696c7b309b1db100da7d94292847b7
author Fam Zheng <famz@redhat.com> 1447064214 +0800
committer Kevin Wolf <kwolf@redhat.com> 1447341763 +0100

qed: Implement .bdrv_drain

The "need_check_timer" is used to clear the "NEED_CHECK" flag in the
image header after a grace period once metadata update has finished. In
compliance to the bdrv_drain semantics we should make sure it remains
deleted once .bdrv_drain is called.

We cannot reuse qed_need_check_timer_cb because here it doesn't satisfy
the assertion.  Do the "plug" and "flush" calls manually.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1447064214-29930-10-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>