diff options
Diffstat (limited to 'xen/common/schedule.c')
| -rw-r--r-- | xen/common/schedule.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/xen/common/schedule.c b/xen/common/schedule.c index dd348c952a..21509b6df1 100644 --- a/xen/common/schedule.c +++ b/xen/common/schedule.c @@ -1288,7 +1288,7 @@ void __init scheduler_init(void) BUG(); } -void schedule_cpu_switch(unsigned int cpu, struct cpupool *c) +int schedule_cpu_switch(unsigned int cpu, struct cpupool *c) { unsigned long flags; struct vcpu *idle; @@ -1297,11 +1297,18 @@ void schedule_cpu_switch(unsigned int cpu, struct cpupool *c) struct scheduler *new_ops = (c == NULL) ? &ops : c->sched; if ( old_ops == new_ops ) - return; + return 0; idle = idle_vcpu[cpu]; ppriv = SCHED_OP(new_ops, alloc_pdata, cpu); + if ( ppriv == NULL ) + return -ENOMEM; vpriv = SCHED_OP(new_ops, alloc_vdata, idle, idle->domain->sched_priv); + if ( vpriv == NULL ) + { + SCHED_OP(new_ops, free_pdata, ppriv, cpu); + return -ENOMEM; + } pcpu_schedule_lock_irqsave(cpu, flags); @@ -1318,6 +1325,8 @@ void schedule_cpu_switch(unsigned int cpu, struct cpupool *c) SCHED_OP(old_ops, free_vdata, vpriv_old); SCHED_OP(old_ops, free_pdata, ppriv_old, cpu); + + return 0; } struct scheduler *scheduler_get_default(void) |