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.
Call the qed_need_check_timer_cb manually to update the header immediately. Signed-off-by: Fam Zheng <f...@redhat.com> --- block/qed.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/block/qed.c b/block/qed.c index 5ea05d4..e9dcb4d 100644 --- a/block/qed.c +++ b/block/qed.c @@ -375,6 +375,12 @@ static void bdrv_qed_attach_aio_context(BlockDriverState *bs, } } +static void bdrv_qed_drain(BlockDriverState *bs) +{ + qed_cancel_need_check_timer(bs->opaque); + qed_need_check_timer_cb(bs->opaque); +} + static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags, Error **errp) { @@ -1676,6 +1682,7 @@ static BlockDriver bdrv_qed = { .bdrv_check = bdrv_qed_check, .bdrv_detach_aio_context = bdrv_qed_detach_aio_context, .bdrv_attach_aio_context = bdrv_qed_attach_aio_context, + .bdrv_drain = bdrv_qed_drain, }; static void bdrv_qed_init(void) -- 2.4.3