From: "Michael S. Tsirkin" <mst@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: "Eugenio Pérez" <eperezma@redhat.com>,
"Jason Wang" <jasowang@redhat.com>,
kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org
Subject: [PATCH RFC 06/13] vhost: reorder functions
Date: Tue, 2 Jun 2020 09:06:08 -0400 [thread overview]
Message-ID: <20200602130543.578420-7-mst@redhat.com> (raw)
In-Reply-To: <20200602130543.578420-1-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 bd52b44b0d23..b4a6e44d56a8 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -2256,6 +2256,13 @@ 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)
@@ -2370,26 +2377,6 @@ 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)
@@ -2459,6 +2446,19 @@ 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:[~2020-06-02 13:07 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-02 13:05 [PATCH RFC 00/13] vhost: format independence Michael S. Tsirkin
2020-06-02 13:05 ` [PATCH RFC 01/13] vhost: option to fetch descriptors through an independent struct Michael S. Tsirkin
2020-06-03 7:13 ` Jason Wang
2020-06-03 9:48 ` Michael S. Tsirkin
2020-06-03 12:04 ` Jason Wang
2020-06-07 13:59 ` Michael S. Tsirkin
2020-06-02 13:05 ` [PATCH RFC 02/13] vhost: use batched version by default Michael S. Tsirkin
2020-06-03 7:15 ` Jason Wang
2020-06-02 13:06 ` [PATCH RFC 03/13] vhost: batching fetches Michael S. Tsirkin
2020-06-03 7:27 ` Jason Wang
2020-06-04 8:59 ` Michael S. Tsirkin
2020-06-05 3:40 ` Jason Wang
2020-06-07 13:57 ` Michael S. Tsirkin
2020-06-08 3:35 ` Jason Wang
2020-06-08 6:01 ` Michael S. Tsirkin
2020-06-02 13:06 ` [PATCH RFC 04/13] vhost: cleanup fetch_buf return code handling Michael S. Tsirkin
2020-06-03 7:29 ` Jason Wang
2020-06-04 9:01 ` Michael S. Tsirkin
2020-06-02 13:06 ` [PATCH RFC 05/13] vhost/net: pass net specific struct pointer Michael S. Tsirkin
2020-06-02 13:06 ` Michael S. Tsirkin [this message]
2020-06-02 13:06 ` [PATCH RFC 07/13] vhost: format-independent API for used buffers Michael S. Tsirkin
2020-06-03 7:58 ` Jason Wang
2020-06-04 9:03 ` Michael S. Tsirkin
2020-06-04 9:18 ` Jason Wang
2020-06-04 10:17 ` Michael S. Tsirkin
2020-06-02 13:06 ` [PATCH RFC 08/13] vhost/net: convert to new API: heads->bufs Michael S. Tsirkin
2020-06-03 8:11 ` Jason Wang
2020-06-04 9:05 ` Michael S. Tsirkin
2020-06-02 13:06 ` [PATCH RFC 09/13] vhost/net: avoid iov length math Michael S. Tsirkin
2020-06-02 13:06 ` [PATCH RFC 10/13] vhost/test: convert to the buf API Michael S. Tsirkin
2020-06-02 13:06 ` [PATCH RFC 11/13] vhost/scsi: switch to buf APIs Michael S. Tsirkin
2020-06-05 8:36 ` Stefan Hajnoczi
2020-06-02 13:06 ` [PATCH RFC 12/13] vhost/vsock: switch to the buf API Michael S. Tsirkin
2020-06-05 8:36 ` Stefan Hajnoczi
2020-06-02 13:06 ` [PATCH RFC 13/13] vhost: drop head based APIs Michael S. Tsirkin
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