From: "Michael S. Tsirkin" <mst@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org, eperezma@redhat.com, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org
Subject: [PATCH RFC v5 06/13] vhost: reorder functions
Date: Sun, 7 Jun 2020 10:11:36 -0400 [thread overview]
Message-ID: <20200607141057.704085-7-mst@redhat.com> (raw)
In-Reply-To: <20200607141057.704085-1-mst@redhat.com>
Reorder functions in the file to not rely on forward
declarations, in preparation to making them static
down the road.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
drivers/vhost/vhost.c | 40 ++++++++++++++++++++--------------------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 5075505cfe55..3ffcba4e27e9 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -2299,6 +2299,13 @@ static int fetch_buf(struct vhost_virtqueue *vq)
return 1;
}
+/* Reverse the effect of vhost_get_vq_desc. Useful for error handling. */
+void vhost_discard_vq_desc(struct vhost_virtqueue *vq, int n)
+{
+ vq->last_avail_idx -= n;
+}
+EXPORT_SYMBOL_GPL(vhost_discard_vq_desc);
+
/* This function returns a value > 0 if a descriptor was found, or 0 if none were found.
* A negative code is returned on error. */
static int fetch_descs(struct vhost_virtqueue *vq)
@@ -2413,26 +2420,6 @@ int vhost_get_vq_desc(struct vhost_virtqueue *vq,
}
EXPORT_SYMBOL_GPL(vhost_get_vq_desc);
-/* Reverse the effect of vhost_get_vq_desc. Useful for error handling. */
-void vhost_discard_vq_desc(struct vhost_virtqueue *vq, int n)
-{
- vq->last_avail_idx -= n;
-}
-EXPORT_SYMBOL_GPL(vhost_discard_vq_desc);
-
-/* After we've used one of their buffers, we tell them about it. We'll then
- * want to notify the guest, using eventfd. */
-int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
-{
- struct vring_used_elem heads = {
- cpu_to_vhost32(vq, head),
- cpu_to_vhost32(vq, len)
- };
-
- return vhost_add_used_n(vq, &heads, 1);
-}
-EXPORT_SYMBOL_GPL(vhost_add_used);
-
static int __vhost_add_used_n(struct vhost_virtqueue *vq,
struct vring_used_elem *heads,
unsigned count)
@@ -2502,6 +2489,19 @@ int vhost_add_used_n(struct vhost_virtqueue *vq, struct vring_used_elem *heads,
}
EXPORT_SYMBOL_GPL(vhost_add_used_n);
+/* After we've used one of their buffers, we tell them about it. We'll then
+ * want to notify the guest, using eventfd. */
+int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
+{
+ struct vring_used_elem heads = {
+ cpu_to_vhost32(vq, head),
+ cpu_to_vhost32(vq, len)
+ };
+
+ return vhost_add_used_n(vq, &heads, 1);
+}
+EXPORT_SYMBOL_GPL(vhost_add_used);
+
static bool vhost_notify(struct vhost_dev *dev, struct vhost_virtqueue *vq)
{
__u16 old, new;
--
MST
next prev parent reply other threads:[~2020-06-07 14:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-07 14:11 [PATCH RFC v5 00/13] vhost: ring format independence Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 01/13] vhost: option to fetch descriptors through an independent struct Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 02/13] vhost: use batched version by default Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 03/13] vhost: batching fetches Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 04/13] vhost: cleanup fetch_buf return code handling Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 05/13] vhost/net: pass net specific struct pointer Michael S. Tsirkin
2020-06-07 14:11 ` Michael S. Tsirkin [this message]
2020-06-07 14:11 ` [PATCH RFC v5 07/13] vhost: format-independent API for used buffers Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 08/13] vhost/net: convert to new API: heads->bufs Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 09/13] vhost/net: avoid iov length math Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 10/13] vhost/test: convert to the buf API Michael S. Tsirkin
2020-06-07 14:11 ` [PATCH RFC v5 11/13] vhost/scsi: switch to buf APIs Michael S. Tsirkin
2020-06-08 9:57 ` Stefan Hajnoczi
2020-06-07 14:11 ` [PATCH RFC v5 12/13] vhost/vsock: switch to the buf API Michael S. Tsirkin
2020-06-08 9:57 ` Stefan Hajnoczi
2020-06-08 10:17 ` Stefano Garzarella
2020-06-08 13:30 ` Michael S. Tsirkin
2020-06-08 16:26 ` Stefano Garzarella
2020-06-07 14:11 ` [PATCH RFC v5 13/13] vhost: drop head based APIs Michael S. Tsirkin
2020-06-08 3:57 ` Jason Wang
2020-06-08 6:45 ` Michael S. Tsirkin
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