[libvirt] [PATCH 3/4] snapshot: take advantage of new relations

Daniel Veillard veillard at redhat.com
Tue Oct 11 02:34:03 UTC 2011


On Mon, Oct 10, 2011 at 03:51:36PM -0600, Eric Blake wrote:
> On 10/09/2011 09:02 PM, Daniel Veillard wrote:
> >>+    if (!(flags&  VIR_DOMAIN_SNAPSHOT_LIST_ROOTS)) {
> >>+        virHashForEach(snapshots->objs, virDomainSnapshotObjListCount,&data);
> >>+    } else if (data.flags) {
> >>+        virDomainSnapshotObjPtr root = snapshots->first_root;
> >>+        while (root) {
> >>+            virDomainSnapshotObjListCount(root, root->def->name,&data);
> >>+            root = root->sibling;
> >>+        }
> >
> >   I was just wondering if a data structure with a meta-root snapshot
> >and unifying first_root as a first_children on that meta-root wouldn't
> >lead to simpler code overall.
> 
> Possibly.  In fact, ESX does just that.  Should I respin this patch
> series to factor that in on first commit, or do it as a followup
> commit?

  IMHO a followup is fine, that should be fairly mechanical
and allow us to actually see if this is a better approach or not
(counting - vs + lines should make this clear :-)

Daniel

-- 
Daniel Veillard      | libxml Gnome XML XSLT toolkit  http://xmlsoft.org/
daniel at veillard.com  | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library  http://libvirt.org/




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