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  1. 16 11月, 2012 13 次提交
  3. 15 11月, 2012 10 次提交
  5. 14 11月, 2012 1 次提交
  7. 13 11月, 2012 1 次提交
  9. 10 11月, 2012 4 次提交
  11. 09 11月, 2012 1 次提交
  13. 08 11月, 2012 1 次提交
  15. 04 11月, 2012 3 次提交
    • A
      ipv6: introduce ip6_rt_put() · 94e187c0
      由 Amerigo Wang 提交于 
      As suggested by Eric, we could introduce a helper function
for ipv6 too, to avoid checking if rt is NULL before
dst_release().

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: NCong Wang <amwang@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      94e187c0
    • A
      ipv6: remove a useless NULL check · 1a940835
      由 Amerigo Wang 提交于 
      In dev_forward_change(), it is useless to check if idev->dev
is NULL, it is always non-NULL here.
Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: NCong Wang <amwang@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1a940835
    • E
      tcp: better retrans tracking for defer-accept · e6c022a4
      由 Eric Dumazet 提交于 
      For passive TCP connections using TCP_DEFER_ACCEPT facility,
we incorrectly increment req->retrans each time timeout triggers
while no SYNACK is sent.

SYNACK are not sent for TCP_DEFER_ACCEPT that were established (for
which we received the ACK from client). Only the last SYNACK is sent
so that we can receive again an ACK from client, to move the req into
accept queue. We plan to change this later to avoid the useless
retransmit (and potential problem as this SYNACK could be lost)

TCP_INFO later gives wrong information to user, claiming imaginary
retransmits.

Decouple req->retrans field into two independent fields :

num_retrans : number of retransmit
num_timeout : number of timeouts

num_timeout is the counter that is incremented at each timeout,
regardless of actual SYNACK being sent or not, and used to
compute the exponential timeout.

Introduce inet_rtx_syn_ack() helper to increment num_retrans
only if ->rtx_syn_ack() succeeded.

Use inet_rtx_syn_ack() from tcp_check_req() to increment num_retrans
when we re-send a SYNACK in answer to a (retransmitted) SYN.
Prior to this patch, we were not counting these retransmits.

Change tcp_v[46]_rtx_synack() to increment TCP_MIB_RETRANSSEGS
only if a synack packet was successfully queued.
Reported-by: NYuchung Cheng <ycheng@google.com>
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Julian Anastasov <ja@ssi.bg>
Cc: Vijay Subramanian <subramanian.vijay@gmail.com>
Cc: Elliott Hughes <enh@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      e6c022a4
  17. 03 11月, 2012 1 次提交
  19. 02 11月, 2012 1 次提交
  21. 29 10月, 2012 4 次提交