3.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Tom Herbert <[email protected]> [ Upstream commit baefa31db2f2b13a05d1b81bdf2d20d487f58b0a ] In commit c445477d74ab3779 which adds aRFS to the kernel, the CPU selected for RFS is not set correctly when CPU is changing. This is causing OOO packets and probably other issues. Signed-off-by: Tom Herbert <[email protected]> Acked-by: Eric Dumazet <[email protected]> Acked-by: Ben Hutchings <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- net/core/dev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2763,8 +2763,10 @@ static int get_rps_cpu(struct net_device if (unlikely(tcpu != next_cpu) && (tcpu == RPS_NO_CPU || !cpu_online(tcpu) || ((int)(per_cpu(softnet_data, tcpu).input_queue_head - - rflow->last_qtail)) >= 0)) + rflow->last_qtail)) >= 0)) { + tcpu = next_cpu; rflow = set_rps_cpu(dev, skb, rflow, next_cpu); + } if (tcpu != RPS_NO_CPU && cpu_online(tcpu)) { *rflowp = rflow; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
