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-rw-r--r--block/raw_bsd.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/raw_bsd.c b/block/raw_bsd.c
index 1a1618ef07..3385ed448d 100644
--- a/block/raw_bsd.c
+++ b/block/raw_bsd.c
@@ -205,6 +205,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags,
{
bs->sg = bs->file->bs->sg;
bs->supported_write_flags = BDRV_REQ_FUA;
+ bs->supported_zero_flags = BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP;
if (bs->probed && !bdrv_is_read_only(bs)) {
fprintf(stderr,