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this_cpu_inc() is IRQ safe and faster than local_bh_disable()/__this_cpu_inc()/local_bh_enable(), at least on x86. Signed-off-by: Eric Dumazet <[email protected]> Cc: Patrick McHardy <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Tejun Heo <[email protected]> Reviewed-by: Christoph Lameter <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>