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IPv4: Remove an unnecessary copy of each outgoing IPv4 payload

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There's no need for send_ipv4() to take a ByteBuffer&&, the data is
immediately cooked into a packet and transmitted. Instead, just pass
it the address+length of whatever buffer we've been using locally.

The more we can reduce the pressure on kmalloc the better. :^)
This commit is contained in:
Andreas Kling 2019-08-05 10:37:09 +02:00
parent 6347e3aa51
commit 52cfe9ebae
6 changed files with 9 additions and 9 deletions
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2
Kernel/Net/IPv4Socket.cpp
View file

@ -164,7 +164,7 @@ ssize_t IPv4Socket::sendto(FileDescription&, const void* data, size_t data_lengt
kprintf("sendto: destination=%s:%u\n", m_peer_address.to_string().characters(), m_peer_port);
if (type() == SOCK_RAW) {
adapter->send_ipv4(MACAddress(), m_peer_address, (IPv4Protocol)protocol(), ByteBuffer::copy(data, data_length));
adapter->send_ipv4(MACAddress(), m_peer_address, (IPv4Protocol)protocol(), (const u8*)data, data_length);
return data_length;
}