ip: do not set RFS core on error queue reads

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We should only record RPS on normal reads and writes.
In single threaded processes, all calls record the same state. In
multi-threaded processes where a separate thread processes
errors, the RFS table mispredicts.

Note that, when CONFIG_RPS is disabled, sock_rps_record_flow
is a noop and no branch is added as a result of this patch.

Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Soheil Hassas Yeganeh 2018-01-03 21:47:10 -05:00 • committed by David S. Miller

parent 2e40b823f0

commit e3f2c4a3db

1 changed files with 2 additions and 1 deletions

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net/ipv4/af_inet.c

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