vhost.c (dd0a11815a339d6deeea8357574f8126a8404c92) vhost.c (59566b6e8cc8f8a05022e0f01a1b90974003f092)
1/* Copyright (C) 2009 Red Hat, Inc.
2 * Copyright (C) 2006 Rusty Russell IBM Corporation
3 *
4 * Author: Michael S. Tsirkin <mst@redhat.com>
5 *
6 * Inspiration, some code, and most witty comments come from
7 * Documentation/virtual/lguest/lguest.c, by Rusty Russell
8 *

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285static void vhost_dev_free_iovecs(struct vhost_dev *dev)
286{
287 int i;
288
289 for (i = 0; i < dev->nvqs; ++i)
290 vhost_vq_free_iovecs(dev->vqs[i]);
291}
292
1/* Copyright (C) 2009 Red Hat, Inc.
2 * Copyright (C) 2006 Rusty Russell IBM Corporation
3 *
4 * Author: Michael S. Tsirkin <mst@redhat.com>
5 *
6 * Inspiration, some code, and most witty comments come from
7 * Documentation/virtual/lguest/lguest.c, by Rusty Russell
8 *

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285static void vhost_dev_free_iovecs(struct vhost_dev *dev)
286{
287 int i;
288
289 for (i = 0; i < dev->nvqs; ++i)
290 vhost_vq_free_iovecs(dev->vqs[i]);
291}
292
293long vhost_dev_init(struct vhost_dev *dev,
293void vhost_dev_init(struct vhost_dev *dev,
294 struct vhost_virtqueue **vqs, int nvqs)
295{
296 struct vhost_virtqueue *vq;
297 int i;
298
299 dev->vqs = vqs;
300 dev->nvqs = nvqs;
301 mutex_init(&dev->mutex);

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314 vq->heads = NULL;
315 vq->dev = dev;
316 mutex_init(&vq->mutex);
317 vhost_vq_reset(dev, vq);
318 if (vq->handle_kick)
319 vhost_poll_init(&vq->poll, vq->handle_kick,
320 POLLIN, dev);
321 }
294 struct vhost_virtqueue **vqs, int nvqs)
295{
296 struct vhost_virtqueue *vq;
297 int i;
298
299 dev->vqs = vqs;
300 dev->nvqs = nvqs;
301 mutex_init(&dev->mutex);

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314 vq->heads = NULL;
315 vq->dev = dev;
316 mutex_init(&vq->mutex);
317 vhost_vq_reset(dev, vq);
318 if (vq->handle_kick)
319 vhost_poll_init(&vq->poll, vq->handle_kick,
320 POLLIN, dev);
321 }
322
323 return 0;
324}
325EXPORT_SYMBOL_GPL(vhost_dev_init);
326
327/* Caller should have device mutex */
328long vhost_dev_check_owner(struct vhost_dev *dev)
329{
330 /* Are you the owner? If not, I don't think you mean to do that */
331 return dev->mm == current->mm ? 0 : -EPERM;

--- 1226 unchanged lines hidden --- 		322}
323EXPORT_SYMBOL_GPL(vhost_dev_init);
324
325/* Caller should have device mutex */
326long vhost_dev_check_owner(struct vhost_dev *dev)
327{
328 /* Are you the owner? If not, I don't think you mean to do that */
329 return dev->mm == current->mm ? 0 : -EPERM;

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