acl: Don't use dovecot-acl-list with public namespaces.

All mailboxes in a public namespace are typically in dovecot-acl-list anyway.

--HG--
branch : HEAD

diff --git a/src/plugins/acl/acl-mailbox-list.c b/src/plugins/acl/acl-mailbox-list.c
index 9797e59aeb63992fb6667b5f35ce6f4d4e5f43ad..a0e1c5b179280891b96f696a7ab7b160bf7f02ac 100644 (file)
--- a/src/plugins/acl/acl-mailbox-list.c
+++ b/src/plugins/acl/acl-mailbox-list.c
@@ -99,6 +99,12 @@ acl_mailbox_try_list_fast(struct acl_mailbox_list_iterate_context *ctx)
                               MAILBOX_LIST_ITER_SELECT_SUBSCRIBED)) != 0)
                return;
 
+       if (ns->type == NAMESPACE_PUBLIC) {
+               /* mailboxes in public namespace should all be listable to
+                  someone. we don't benefit from fast listing. */
+               return;
+       }
+
        /* if this namespace's default rights contain LOOKUP, we'll need to
           go through all mailboxes in any case. */
        idxp = alist->rights.acl_storage_right_idx + ACL_STORAGE_RIGHT_LOOKUP;