Red Hat LINUX VIRTUAL SERVER 4.7 - ADMINISTRATION Przewodnik Instalacji Pobierz pdf (Strona 10)

static int kvm_vm_ioctl_deassign_device(struct kvm *kvm,

struct kvm_assigned_pci_dev *assigned_dev)

{

int r = 0;

struct kvm_assigned_dev_kernel *match;

mutex_lock(&kvm->lock);

match = kvm _find_assigned_dev(&kvm->arch.assigned_dev_head,

assigned_dev->assigned_dev_id);

if (!match) {

printk(KERN_INFO "%s: device hasn't been assigned before, "

"so cannot be deassigned\n", __func__);

r = -EINVAL;

goto out;

}

kvm _deassign_device(kvm, m atch);

kvm _free_assigned_device(kvm, match);

out:

mutex_unlock(&kvm->lock);

return r;

}

1.3. Notes and Warnings

Finally, we use three visual styles to draw attention to information that might otherwise be overlooked.

Note

Notes are tips, shortcuts or alternative approaches to the task at hand. Ignoring a note should

have no negative consequences, but you might miss out on a trick that makes your life easier.

Important

Important boxes detail things that are easily missed: configuration changes that only apply to the

current session, or services that need restarting before an update will apply. Ignoring a box

labeled 'Important' will not cause data loss but may cause irritation and frustration.

Warning

Warnings should not be ignored. Ignoring warnings will most likely cause data loss.

2. Feedback

If you spot a typo, or if you have thought of a way to make this manual better, we would love to hear from

you. Please submit a report in Bugzilla (http://bugzilla.redhat.com/bugzilla/) against the component rh-

cs-en.

Introduction

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Red Hat LINUX VIRTUAL SERVER 4.7 - ADMINISTRATION Przewodnik Instalacji Strona 10