diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2010-02-17 18:27:37 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-02-17 18:28:05 +0100 |
| commit | b7e56edba4b02f2079042c326a8cd72a44635817 (patch) | |
| tree | b5042002e9747cd8fb1278d61f86d8b92a74c018 /drivers/virtio | |
| parent | 13ca0fcaa33f6b1984c4111b6ec5df42689fea6f (diff) | |
| parent | b0483e78e5c4c9871fc5541875b3bc006846d46b (diff) | |
Merge branch 'linus' into x86/mm
x86/mm is on 32-rc4 and missing the spinlock namespace changes which
are needed for further commits into this topic.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio_balloon.c | 9 | ||||
| -rw-r--r-- | drivers/virtio/virtio_pci.c | 27 | ||||
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 3 |
3 files changed, 22 insertions, 17 deletions
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 200c22f55130..505be88c82ae 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -19,7 +19,6 @@ */ //#define DEBUG #include <linux/virtio.h> -#include <linux/virtio_ids.h> #include <linux/virtio_balloon.h> #include <linux/swap.h> #include <linux/kthread.h> @@ -248,7 +247,7 @@ out: return err; } -static void virtballoon_remove(struct virtio_device *vdev) +static void __devexit virtballoon_remove(struct virtio_device *vdev) { struct virtio_balloon *vb = vdev->priv; @@ -267,7 +266,7 @@ static void virtballoon_remove(struct virtio_device *vdev) static unsigned int features[] = { VIRTIO_BALLOON_F_MUST_TELL_HOST }; -static struct virtio_driver virtio_balloon = { +static struct virtio_driver virtio_balloon_driver = { .feature_table = features, .feature_table_size = ARRAY_SIZE(features), .driver.name = KBUILD_MODNAME, @@ -280,12 +279,12 @@ static struct virtio_driver virtio_balloon = { static int __init init(void) { - return register_virtio_driver(&virtio_balloon); + return register_virtio_driver(&virtio_balloon_driver); } static void __exit fini(void) { - unregister_virtio_driver(&virtio_balloon); + unregister_virtio_driver(&virtio_balloon_driver); } module_init(init); module_exit(fini); diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 4a1f1ebff7bf..28d9cf7cf72f 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -530,19 +530,22 @@ static int vp_try_to_find_vqs(struct virtio_device *vdev, unsigned nvqs, err = PTR_ERR(vqs[i]); goto error_find; } + + if (!vp_dev->per_vq_vectors || msix_vec == VIRTIO_MSI_NO_VECTOR) + continue; + /* allocate per-vq irq if available and necessary */ - if (vp_dev->per_vq_vectors) { - snprintf(vp_dev->msix_names[msix_vec], - sizeof *vp_dev->msix_names, - "%s-%s", - dev_name(&vp_dev->vdev.dev), names[i]); - err = request_irq(msix_vec, vring_interrupt, 0, - vp_dev->msix_names[msix_vec], - vqs[i]); - if (err) { - vp_del_vq(vqs[i]); - goto error_find; - } + snprintf(vp_dev->msix_names[msix_vec], + sizeof *vp_dev->msix_names, + "%s-%s", + dev_name(&vp_dev->vdev.dev), names[i]); + err = request_irq(vp_dev->msix_entries[msix_vec].vector, + vring_interrupt, 0, + vp_dev->msix_names[msix_vec], + vqs[i]); + if (err) { + vp_del_vq(vqs[i]); + goto error_find; } } return 0; diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index f53600580726..fbd2ecde93e4 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -285,6 +285,9 @@ static void *vring_get_buf(struct virtqueue *_vq, unsigned int *len) return NULL; } + /* Only get used array entries after they have been exposed by host. */ + rmb(); + i = vq->vring.used->ring[vq->last_used_idx%vq->vring.num].id; *len = vq->vring.used->ring[vq->last_used_idx%vq->vring.num].len; |