[PATCH] Avoid panic when adjusting sedf parameters

[Juergen Gross <juergen.gross@ts.fujitsu.com>]

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When using sedf scheduler in a cpupool the system might panic when setting
sedf scheduling parameters for a domain.

Signed-off-by: juergen.gross@ts.fujitsu.com


1 file changed, 4 insertions(+)
xen/common/sched_sedf.c |    4 ++++



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# HG changeset patch
# User Juergen Gross <juergen.gross@ts.fujitsu.com>
# Date 1321533195 -3600
# Node ID 7167eaa187b3cd996637b1f995707ff9196d00d3
# Parent  fd3567cafe1c7ccd0ddba0ad7fb067d435e13529
Avoid panic when adjusting sedf parameters

When using sedf scheduler in a cpupool the system might panic when setting
sedf scheduling parameters for a domain.

Signed-off-by: juergen.gross@ts.fujitsu.com

diff -r fd3567cafe1c -r 7167eaa187b3 xen/common/sched_sedf.c
--- a/xen/common/sched_sedf.c	Tue Nov 15 14:50:18 2011 +0100
+++ b/xen/common/sched_sedf.c	Thu Nov 17 13:33:15 2011 +0100
@@ -1304,6 +1304,8 @@ static void sedf_dump_cpu_state(const st
     rcu_read_lock(&domlist_read_lock);
     for_each_domain ( d )
     {
+        if ( (d->cpupool ? d->cpupool->sched : &sched_sedf_def) != ops )
+            continue;
         for_each_vcpu(d, ed)
         {
             if ( !__task_on_queue(ed) && (ed->processor == i) )
@@ -1369,6 +1371,8 @@ static int sedf_adjust_weights(struct cp
     rcu_read_lock(&domlist_read_lock);
     for_each_domain( d )
     {
+        if ( c != d->cpupool )
+            continue;
         for_each_vcpu ( d, p )
         {
             if ( (cpu = p->processor) >= nr_cpus )

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