>>> On 3/11/2014 at 10:24 PM, in message
<20140311142451.gm7...@stefanha-thinkpad.redhat.com>, Stefan Hajnoczi
<stefa...@gmail.com> wrote:
> On Mon, Mar 10, 2014 at 03:31:49PM +0800, Chunyan Liu wrote:
> > diff --git a/block/qed.h b/block/qed.h
> > index 5d65bea..b024751 100644
> > --- a/block/qed.h
> > +++ b/block/qed.h
> > @@ -43,7 +43,7 @@
> > *
> > * All fields are little-endian on disk.
> > */
> > -
> > +#define QED_DEFAULT_CLUSTER_SIZE 65536
> > enum {
> > QED_MAGIC = 'Q' | 'E' << 8 | 'D' << 16 | '\0' << 24,
> >
> > @@ -69,7 +69,6 @@ enum {
> > */
> > QED_MIN_CLUSTER_SIZE = 4 * 1024, /* in bytes */
> > QED_MAX_CLUSTER_SIZE = 64 * 1024 * 1024,
> > - QED_DEFAULT_CLUSTER_SIZE = 64 * 1024,
>
> Why is this change made for cluster size but not table size?
According to existing create_options, "cluster size" has default value =
QED_DEFAULT_CLUSTER_SIZE, after switching to create_opts, this has to be
stringized and set to .def_value_str. That is,
.def_value_str = stringify(QED_DEFAULT_CLUSTER_SIZE),
so the QED_DEFAULT_CLUSTER_SIZE could not be a expression, here changes.
"table size" has no default value in create_options, not need such changes
>
> Stefan
>
>
