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xen/pciback: Move the PCI_DEV_FLAGS_ASSIGNED ops to the "[un|]bind" 

operation instead of doing it per guest creation/disconnection. Without
this we could have potentially unloaded the vf driver from the
xen pciback control even if the driver was binded to the xen-pciback.
This will hold on to it until the user "unbind"s the PCI device using
SysFS.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Konrad Rzeszutek Wilk 2012-01-04 14:10:32 -05:00
parent a800651e88
commit 97309d3974
2 changed files with 2 additions and 2 deletions
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2
drivers/xen/xen-pciback/pci_stub.c
View File

@ -99,6 +99,7 @@ static void pcistub_device_release(struct kref *kref)
kfree(pci_get_drvdata(psdev->dev));
pci_set_drvdata(psdev->dev, NULL);
psdev->dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
pci_dev_put(psdev->dev);
kfree(psdev);
@ -331,6 +332,7 @@ static int __devinit pcistub_init_device(struct pci_dev *dev)
dev_dbg(&dev->dev, "reset device\n");
xen_pcibk_reset_device(dev);
dev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
return 0;
config_release:

2
drivers/xen/xen-pciback/xenbus.c
View File

@ -241,7 +241,6 @@ static int xen_pcibk_export_device(struct xen_pcibk_device *pdev,
goto out;
dev_dbg(&dev->dev, "registering for %d\n", pdev->xdev->otherend_id);
dev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
if (xen_register_device_domain_owner(dev,
pdev->xdev->otherend_id) != 0) {
dev_err(&dev->dev, "device has been assigned to another " \
@ -281,7 +280,6 @@ static int xen_pcibk_remove_device(struct xen_pcibk_device *pdev,
}
dev_dbg(&dev->dev, "unregistering for %d\n", pdev->xdev->otherend_id);
dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
xen_unregister_device_domain_owner(dev);
xen_pcibk_release_pci_dev(pdev, dev);