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36b83ffcf2
input_queue_tail_incr_save() is incrementing the sd queue_tail and save it in the flow last_qtail. Two issues here : - no lock protects the write on last_qtail, we should use appropriate annotations. - We can perform this write after releasing the per-cpu backlog lock, to decrease this lock hold duration (move away the cache line miss) Also move input_queue_head_incr() and rps helpers to include/net/rps.h, while adding rps_ prefix to better reflect their role. v2: Fixed a build issue (Jakub and kernel build bots) Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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