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authorRao, Lei <lei.rao@intel.com>2021-06-08 16:23:29 +0800
committerJason Wang <jasowang@redhat.com>2021-06-11 10:30:13 +0800
commit9b492719dd0445c676da6805c84f9a5893583d1c (patch)
tree10a55b5c2d74ea9097a7e30f1b6cda6711bd4a39 /net/colo.c
parent3ba024457facdb6b0ef9c5c742261d4080a80a11 (diff)
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Add a function named packet_new_nocopy for COLO.
Use the packet_new_nocopy instead of packet_new in the filter-rewriter module. There will be one less memory copy in the processing of each network packet. Signed-off-by: Lei Rao <lei.rao@intel.com> Signed-off-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'net/colo.c')
-rw-r--r--net/colo.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/net/colo.c b/net/colo.c
index ef00609..3a3e6e8 100644
--- a/net/colo.c
+++ b/net/colo.c
@@ -157,19 +157,28 @@ void connection_destroy(void *opaque)
Packet *packet_new(const void *data, int size, int vnet_hdr_len)
{
- Packet *pkt = g_slice_new(Packet);
+ Packet *pkt = g_slice_new0(Packet);
pkt->data = g_memdup(data, size);
pkt->size = size;
pkt->creation_ms = qemu_clock_get_ms(QEMU_CLOCK_HOST);
pkt->vnet_hdr_len = vnet_hdr_len;
- pkt->tcp_seq = 0;
- pkt->tcp_ack = 0;
- pkt->seq_end = 0;
- pkt->header_size = 0;
- pkt->payload_size = 0;
- pkt->offset = 0;
- pkt->flags = 0;
+
+ return pkt;
+}
+
+/*
+ * packet_new_nocopy will not copy data, so the caller can't release
+ * the data. And it will be released in packet_destroy.
+ */
+Packet *packet_new_nocopy(void *data, int size, int vnet_hdr_len)
+{
+ Packet *pkt = g_slice_new0(Packet);
+
+ pkt->data = data;
+ pkt->size = size;
+ pkt->creation_ms = qemu_clock_get_ms(QEMU_CLOCK_HOST);
+ pkt->vnet_hdr_len = vnet_hdr_len;
return pkt;
}