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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-07-21 00:55:14 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-07-21 00:55:14 -0400 |
| commit | 908cf4b925e419bc74f3297b2f0e51d6f8a81da2 (patch) | |
| tree | 6c2da79366d4695a9c2560ab18259eca8a2a25b4 /drivers/xen/xenbus/xenbus_comms.c | |
| parent | 92c49890922d54cba4b1eadeb0b185773c2c9570 (diff) | |
| parent | 14b395e35d1afdd8019d11b92e28041fad591b71 (diff) | |
| download | talos-obmc-linux-908cf4b925e419bc74f3297b2f0e51d6f8a81da2.tar.gz talos-obmc-linux-908cf4b925e419bc74f3297b2f0e51d6f8a81da2.zip | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into next
Diffstat (limited to 'drivers/xen/xenbus/xenbus_comms.c')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_comms.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/xen/xenbus/xenbus_comms.c b/drivers/xen/xenbus/xenbus_comms.c index 6efbe3f29ca5..090c61ee8fd0 100644 --- a/drivers/xen/xenbus/xenbus_comms.c +++ b/drivers/xen/xenbus/xenbus_comms.c @@ -203,7 +203,6 @@ int xb_read(void *data, unsigned len) int xb_init_comms(void) { struct xenstore_domain_interface *intf = xen_store_interface; - int err; if (intf->req_prod != intf->req_cons) printk(KERN_ERR "XENBUS request ring is not quiescent " @@ -216,18 +215,20 @@ int xb_init_comms(void) intf->rsp_cons = intf->rsp_prod; } - if (xenbus_irq) - unbind_from_irqhandler(xenbus_irq, &xb_waitq); + if (xenbus_irq) { + /* Already have an irq; assume we're resuming */ + rebind_evtchn_irq(xen_store_evtchn, xenbus_irq); + } else { + int err; + err = bind_evtchn_to_irqhandler(xen_store_evtchn, wake_waiting, + 0, "xenbus", &xb_waitq); + if (err <= 0) { + printk(KERN_ERR "XENBUS request irq failed %i\n", err); + return err; + } - err = bind_evtchn_to_irqhandler( - xen_store_evtchn, wake_waiting, - 0, "xenbus", &xb_waitq); - if (err <= 0) { - printk(KERN_ERR "XENBUS request irq failed %i\n", err); - return err; + xenbus_irq = err; } - xenbus_irq = err; - return 0; } |
