From: Jan Beulich <jbeulich@suse.com>
Date: Thu, 1 Jun 2017 08:49:53 +0000 (+0200)
Subject: smp: assert that all affected CPUs are online in on_selected_cpus()
X-Git-Tag: archive/raspbian/4.11.1-1+rpi1~1^2~66^2~2100
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=02bcbb09fda25bb03e7269a2433e17c763e9d6f5;p=xen.git

smp: assert that all affected CPUs are online in on_selected_cpus()

Suggested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
---

diff --git a/xen/common/smp.c b/xen/common/smp.c
index 482a203b02..79f4ebd145 100644
--- a/xen/common/smp.c
+++ b/xen/common/smp.c
@@ -53,6 +53,7 @@ void on_selected_cpus(
     unsigned int nr_cpus;
 
     ASSERT(local_irq_is_enabled());
+    ASSERT(cpumask_subset(selected, &cpu_online_map));
 
     spin_lock(&call_lock);