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authorStefano Brivio <sbrivio@redhat.com>2021-04-30 14:52:18 +0200
committerStefano Brivio <sbrivio@redhat.com>2021-04-30 14:52:18 +0200
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udp, passt: Introduce socket packet buffer, avoid getsockname() for UDP
This is in preparation for scatter-gather IO on the UDP receive path: save a getsockname() syscall by setting a flag if we get the numbering of all bound sockets in a strict sequence (expected, in practice) and repurpose the tap buffer to be also a socket receive buffer, passing it down to protocol handlers. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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