tools/xenstore: don't apply write limiting for privileged domain

Xenstore write limiting should not be applied to dom0. Unfortunately
write limiting is disabled only for connections via sockets. When
running in a stubdom Xenstore will apply write limiting to dom0, too.
Change that by testing for the domain to be privileged as well.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wl@xen.org>

diff --git a/tools/xenstore/xenstored_domain.c b/tools/xenstore/xenstored_domain.c
index 1a83097952ab5770d2ee883975cf67fe676ded14..baddaba5dff94f7ac7c70044649ca18c16cb7d43 100644 (file)
--- a/tools/xenstore/xenstored_domain.c
+++ b/tools/xenstore/xenstored_domain.c
@@ -918,8 +918,8 @@ void wrl_apply_debit_actual(struct domain *domain)
 {
        struct wrl_timestampt now;
 
-       if (!domain)
-               /* sockets escape the write rate limit */
+       if (!domain || !domid_is_unprivileged(domain->domid))
+               /* sockets and privileged domain escape the write rate limit */
                return;
 
        wrl_gettime_now(&now);