Signed-off-by: Anton Nefedov <anton.nefe...@virtuozzo.com>
---
block/mirror.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/block/mirror.c b/block/mirror.c
index 56d9ef7474..56908c9b19 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1528,8 +1528,12 @@ static void mirror_start_job(const char *job_id,
BlockDriverState *bs,
mirror_top_bs->implicit = true;
}
mirror_top_bs->total_sectors = bs->total_sectors;
- mirror_top_bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED;
- mirror_top_bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED;
+ mirror_top_bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED |
+ (BDRV_REQ_FUA & bs->supported_write_flags);
+ mirror_top_bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED |
+ ((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP)
+ & bs->supported_zero_flags);
+
bs_opaque = g_new0(MirrorBDSOpaque, 1);
mirror_top_bs->opaque = bs_opaque;
bdrv_set_aio_context(mirror_top_bs, bdrv_get_aio_context(bs));
--
2.17.1
