On 2018-01-18 18:48, Anton Nefedov wrote: > Signed-off-by: Anton Nefedov <anton.nefe...@virtuozzo.com> > Reviewed-by: Eric Blake <ebl...@redhat.com> > Reviewed-by: Alberto Garcia <be...@igalia.com> > --- > block/mirror.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/block/mirror.c b/block/mirror.c > index c9badc1..d18ec65 100644 > --- a/block/mirror.c > +++ b/block/mirror.c > @@ -1064,6 +1064,11 @@ static void > bdrv_mirror_top_refresh_filename(BlockDriverState *bs, QDict *opts) > bdrv_refresh_filename(bs->backing->bs); > pstrcpy(bs->exact_filename, sizeof(bs->exact_filename), > bs->backing->bs->filename); > + bs->supported_write_flags = BDRV_REQ_FUA & > + bs->backing->bs->supported_write_flags; > + bs->supported_zero_flags = > + (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) & > + bs->backing->bs->supported_zero_flags; > } > > static void bdrv_mirror_top_close(BlockDriverState *bs)
Fundamentally OK, but why is this in *_refresh_filename()? Max
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