From: Juergen Gross <juergen.gross@ts.fujitsu.com>
Date: Wed, 16 Oct 2013 10:26:48 +0000 (+0200)
Subject: credit: unpause parked vcpu before destroying it
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~6151
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/success//%22http:/www.example.com/cgi/success/?a=commitdiff_plain;h=d38a668b6ef8c84d1d3fda9947ffb0056d01fe3a;p=xen.git

credit: unpause parked vcpu before destroying it

A capped out vcpu must be unpaused in case of moving it to another cpupool,
otherwise it will be paused forever.

Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com>
---

diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c
index 192c653937..e69d794a22 100644
--- a/xen/common/sched_credit.c
+++ b/xen/common/sched_credit.c
@@ -929,6 +929,12 @@ csched_vcpu_remove(const struct scheduler *ops, struct vcpu *vc)
 
     SCHED_STAT_CRANK(vcpu_destroy);
 
+    if ( test_and_clear_bit(CSCHED_FLAG_VCPU_PARKED, &svc->flags) )
+    {
+        SCHED_STAT_CRANK(vcpu_unpark);
+        vcpu_unpause(svc->vcpu);
+    }
+
     if ( __vcpu_on_runq(svc) )
         __runq_remove(svc);