From: Christoph Hellwig <hch@lst.de>
To: mst@redhat.com
Cc: virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/7] virtio_pci: merge vp_free_vectors into vp_del_vqs
Date: Sun, 6 Nov 2016 15:09:39 -0800 [thread overview]
Message-ID: <1478473783-12589-4-git-send-email-hch@lst.de> (raw)
In-Reply-To: <1478473783-12589-1-git-send-email-hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/virtio/virtio_pci_common.c | 61 +++++++++++++++++---------------------
1 file changed, 27 insertions(+), 34 deletions(-)
diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index 93700c5..f6c5499 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -102,39 +102,6 @@ static irqreturn_t vp_interrupt(int irq, void *opaque)
return vp_vring_interrupt(irq, opaque);
}
-static void vp_free_vectors(struct virtio_device *vdev)
-{
- struct virtio_pci_device *vp_dev = to_vp_device(vdev);
- int i;
-
- if (vp_dev->intx_enabled) {
- free_irq(vp_dev->pci_dev->irq, vp_dev);
- vp_dev->intx_enabled = 0;
- }
-
- for (i = 0; i < vp_dev->msix_used_vectors; ++i)
- free_irq(pci_irq_vector(vp_dev->pci_dev, i), vp_dev);
-
- for (i = 0; i < vp_dev->msix_vectors; i++)
- if (vp_dev->msix_affinity_masks[i])
- free_cpumask_var(vp_dev->msix_affinity_masks[i]);
-
- if (vp_dev->msix_enabled) {
- /* Disable the vector used for configuration */
- vp_dev->config_vector(vp_dev, VIRTIO_MSI_NO_VECTOR);
-
- pci_free_irq_vectors(vp_dev->pci_dev);
- vp_dev->msix_enabled = 0;
- }
-
- vp_dev->msix_vectors = 0;
- vp_dev->msix_used_vectors = 0;
- kfree(vp_dev->msix_names);
- vp_dev->msix_names = NULL;
- kfree(vp_dev->msix_affinity_masks);
- vp_dev->msix_affinity_masks = NULL;
-}
-
static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
bool per_vq_vectors)
{
@@ -266,6 +233,7 @@ void vp_del_vqs(struct virtio_device *vdev)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
struct virtqueue *vq, *n;
+ int i;
list_for_each_entry_safe(vq, n, &vdev->vqs, list) {
if (vp_dev->per_vq_vectors) {
@@ -279,7 +247,32 @@ void vp_del_vqs(struct virtio_device *vdev)
}
vp_dev->per_vq_vectors = false;
- vp_free_vectors(vdev);
+ if (vp_dev->intx_enabled) {
+ free_irq(vp_dev->pci_dev->irq, vp_dev);
+ vp_dev->intx_enabled = 0;
+ }
+
+ for (i = 0; i < vp_dev->msix_used_vectors; ++i)
+ free_irq(pci_irq_vector(vp_dev->pci_dev, i), vp_dev);
+
+ for (i = 0; i < vp_dev->msix_vectors; i++)
+ if (vp_dev->msix_affinity_masks[i])
+ free_cpumask_var(vp_dev->msix_affinity_masks[i]);
+
+ if (vp_dev->msix_enabled) {
+ /* Disable the vector used for configuration */
+ vp_dev->config_vector(vp_dev, VIRTIO_MSI_NO_VECTOR);
+
+ pci_free_irq_vectors(vp_dev->pci_dev);
+ vp_dev->msix_enabled = 0;
+ }
+
+ vp_dev->msix_vectors = 0;
+ vp_dev->msix_used_vectors = 0;
+ kfree(vp_dev->msix_names);
+ vp_dev->msix_names = NULL;
+ kfree(vp_dev->msix_affinity_masks);
+ vp_dev->msix_affinity_masks = NULL;
kfree(vp_dev->vqs);
vp_dev->vqs = NULL;
}
--
2.1.4
next prev parent reply other threads:[~2016-11-06 23:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-06 23:09 virtio_pci irq handling cleanups Christoph Hellwig
2016-11-06 23:09 ` [PATCH 1/7] virtio_pci: use pci_alloc_irq_vectors Christoph Hellwig
2016-11-06 23:09 ` [PATCH 2/7] virtio_pci: remove the call to vp_free_vectors in vp_request_msix_vectors Christoph Hellwig
2016-11-06 23:09 ` Christoph Hellwig [this message]
2016-11-06 23:09 ` [PATCH 4/7] virtio_pci: split the INTx case out of vp_try_to_find_vqs Christoph Hellwig
2016-11-06 23:09 ` [PATCH 5/7] virtio_pci: add a helper to request MSI-X interrupts Christoph Hellwig
2016-11-06 23:09 ` [PATCH 6/7] virtio_pci: split the shared and per-VQ MSI-X setup routines Christoph Hellwig
2016-11-06 23:09 ` [PATCH 7/7] virtio_pci: clean up interrupt state in struct virtio_pci_device Christoph Hellwig
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