xen-netback: switch to threaded irq for control ring

[cascardo/linux.git] / drivers / net / xen-netback / netback.c

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index edbae0b..3d0c989 100644 (file)
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -2359,24 +2359,14 @@ static bool xenvif_ctrl_work_todo(struct xenvif *vif)
        return 0;
 }
 
-int xenvif_ctrl_kthread(void *data)
+irqreturn_t xenvif_ctrl_irq_fn(int irq, void *data)
 {
        struct xenvif *vif = data;
 
-       for (;;) {
-               wait_event_interruptible(vif->ctrl_wq,
-                                        xenvif_ctrl_work_todo(vif) ||
-                                        kthread_should_stop());
-               if (kthread_should_stop())
-                       break;
-
-               while (xenvif_ctrl_work_todo(vif))
-                       xenvif_ctrl_action(vif);
+       while (xenvif_ctrl_work_todo(vif))
+               xenvif_ctrl_action(vif);
 
-               cond_resched();
-       }
-
-       return 0;
+       return IRQ_HANDLED;
 }
 
 static int __init netback_init(void)