diff options
Diffstat (limited to 'block/throttle.c')
| -rw-r--r-- | block/throttle.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/block/throttle.c b/block/throttle.c index 95ed06acd8..e298827f95 100644 --- a/block/throttle.c +++ b/block/throttle.c @@ -81,8 +81,10 @@ static int throttle_open(BlockDriverState *bs, QDict *options, if (!bs->file) { return -EINVAL; } - bs->supported_write_flags = bs->file->bs->supported_write_flags; - bs->supported_zero_flags = bs->file->bs->supported_zero_flags; + bs->supported_write_flags = bs->file->bs->supported_write_flags | + BDRV_REQ_WRITE_UNCHANGED; + bs->supported_zero_flags = bs->file->bs->supported_zero_flags | + BDRV_REQ_WRITE_UNCHANGED; return throttle_configure_tgm(bs, tgm, options, errp); } |