diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 89860f34a7ec..4f66171c6683 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -416,7 +416,7 @@ static void xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info "discard-secure", "%d", blkif->vbd.discard_secure); if (err) { - dev_warn(dev-dev, "writing discard-secure (%d)", err); + dev_warn(&dev->dev, "writing discard-secure (%d)", err); return; } } diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 99d8151c824a..1ffd03bf8e10 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -722,7 +722,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) vma->vm_flags |= VM_RESERVED|VM_DONTEXPAND; if (use_ptemod) - vma->vm_flags |= VM_DONTCOPY|VM_PFNMAP; + vma->vm_flags |= VM_DONTCOPY; vma->vm_private_data = map; diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index b4d4eac761db..f100ce20b16b 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -1029,6 +1029,7 @@ int gnttab_init(void) int i; unsigned int max_nr_glist_frames, nr_glist_frames; unsigned int nr_init_grefs; + int ret; nr_grant_frames = 1; boot_max_nr_grant_frames = __max_nr_grant_frames(); @@ -1047,12 +1048,16 @@ int gnttab_init(void) nr_glist_frames = (nr_grant_frames * GREFS_PER_GRANT_FRAME + RPP - 1) / RPP; for (i = 0; i < nr_glist_frames; i++) { gnttab_list[i] = (grant_ref_t *)__get_free_page(GFP_KERNEL); - if (gnttab_list[i] == NULL) + if (gnttab_list[i] == NULL) { + ret = -ENOMEM; goto ini_nomem; + } } - if (gnttab_resume() < 0) - return -ENODEV; + if (gnttab_resume() < 0) { + ret = -ENODEV; + goto ini_nomem; + } nr_init_grefs = nr_grant_frames * GREFS_PER_GRANT_FRAME; @@ -1070,7 +1075,7 @@ int gnttab_init(void) for (i--; i >= 0; i--) free_page((unsigned long)gnttab_list[i]); kfree(gnttab_list); - return -ENOMEM; + return ret; } EXPORT_SYMBOL_GPL(gnttab_init); diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index 9e14ae6cd49c..412b96cc5305 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -132,6 +132,7 @@ static void do_suspend(void) err = dpm_suspend_end(PMSG_FREEZE); if (err) { printk(KERN_ERR "dpm_suspend_end failed: %d\n", err); + si.cancelled = 0; goto out_resume; } diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c index f20c5f178b40..a31b54d48839 100644 --- a/drivers/xen/xenbus/xenbus_probe_frontend.c +++ b/drivers/xen/xenbus/xenbus_probe_frontend.c @@ -135,7 +135,7 @@ static int read_backend_details(struct xenbus_device *xendev) return xenbus_read_otherend_details(xendev, "backend-id", "backend"); } -static int is_device_connecting(struct device *dev, void *data) +static int is_device_connecting(struct device *dev, void *data, bool ignore_nonessential) { struct xenbus_device *xendev = to_xenbus_device(dev); struct device_driver *drv = data; @@ -152,16 +152,41 @@ static int is_device_connecting(struct device *dev, void *data) if (drv && (dev->driver != drv)) return 0; + if (ignore_nonessential) { + /* With older QEMU, for PVonHVM guests the guest config files + * could contain: vfb = [ 'vnc=1, vnclisten=0.0.0.0'] + * which is nonsensical as there is no PV FB (there can be + * a PVKB) running as HVM guest. */ + + if ((strncmp(xendev->nodename, "device/vkbd", 11) == 0)) + return 0; + + if ((strncmp(xendev->nodename, "device/vfb", 10) == 0)) + return 0; + } xendrv = to_xenbus_driver(dev->driver); return (xendev->state < XenbusStateConnected || (xendev->state == XenbusStateConnected && xendrv->is_ready && !xendrv->is_ready(xendev))); } +static int essential_device_connecting(struct device *dev, void *data) +{ + return is_device_connecting(dev, data, true /* ignore PV[KBB+FB] */); +} +static int non_essential_device_connecting(struct device *dev, void *data) +{ + return is_device_connecting(dev, data, false); +} -static int exists_connecting_device(struct device_driver *drv) +static int exists_essential_connecting_device(struct device_driver *drv) { return bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, - is_device_connecting); + essential_device_connecting); +} +static int exists_non_essential_connecting_device(struct device_driver *drv) +{ + return bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, + non_essential_device_connecting); } static int print_device_status(struct device *dev, void *data) @@ -192,6 +217,23 @@ static int print_device_status(struct device *dev, void *data) /* We only wait for device setup after most initcalls have run. */ static int ready_to_wait_for_devices; +static bool wait_loop(unsigned long start, unsigned int max_delay, + unsigned int *seconds_waited) +{ + if (time_after(jiffies, start + (*seconds_waited+5)*HZ)) { + if (!*seconds_waited) + printk(KERN_WARNING "XENBUS: Waiting for " + "devices to initialise: "); + *seconds_waited += 5; + printk("%us...", max_delay - *seconds_waited); + if (*seconds_waited == max_delay) + return true; + } + + schedule_timeout_interruptible(HZ/10); + + return false; +} /* * On a 5-minute timeout, wait for all devices currently configured. We need * to do this to guarantee that the filesystems and / or network devices @@ -215,19 +257,14 @@ static void wait_for_devices(struct xenbus_driver *xendrv) if (!ready_to_wait_for_devices || !xen_domain()) return; - while (exists_connecting_device(drv)) { - if (time_after(jiffies, start + (seconds_waited+5)*HZ)) { - if (!seconds_waited) - printk(KERN_WARNING "XENBUS: Waiting for " - "devices to initialise: "); - seconds_waited += 5; - printk("%us...", 300 - seconds_waited); - if (seconds_waited == 300) - break; - } + while (exists_non_essential_connecting_device(drv)) + if (wait_loop(start, 30, &seconds_waited)) + break; - schedule_timeout_interruptible(HZ/10); - } + /* Skips PVKB and PVFB check.*/ + while (exists_essential_connecting_device(drv)) + if (wait_loop(start, 270, &seconds_waited)) + break; if (seconds_waited) printk("\n");