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Kernel: Avoid allocating and then freeing packet buffers

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We already have another limit for the total number of packet buffers
allowed (max_packet_buffers). This second limit caused us to
repeatedly allocate and then free buffers.
This commit is contained in:
Gunnar Beutner 2021-05-12 17:24:50 +02:00 • committed by Andreas Kling
parent 55c3a5969c
commit 76deda802d
1 changed files with 2 additions and 4 deletions
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6
Kernel/Net/NetworkAdapter.cpp
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@ -199,10 +199,8 @@ size_t NetworkAdapter::dequeue_packet(u8* buffer, size_t buffer_size, Time& pack
size_t packet_size = packet.size(); size_t packet_size = packet.size();
VERIFY(packet_size <= buffer_size); VERIFY(packet_size <= buffer_size);
memcpy(buffer, packet.data(), packet_size); memcpy(buffer, packet.data(), packet_size);
if (m_unused_packet_buffers_count < 100) { m_unused_packet_buffers.append(packet);
m_unused_packet_buffers.append(packet); ++m_unused_packet_buffers_count;
++m_unused_packet_buffers_count;
}
return packet_size; return packet_size;
} }