https://github.com/torvalds/linux
Revision 1d57f19539c074105791da6384a8ad674bba8037 authored by Eric Dumazet on 17 September 2012, 12:51:39 UTC, committed by David S. Miller on 18 September 2012, 20:26:27 UTC
Stephan Springl found that commit 1402d366019fed "tcp: introduce
tcp_try_coalesce" introduced a regression for rlogin

It turns out problem comes from TCP urgent data handling and
a change in behavior in input path.

rlogin sends two one-byte packets with URG ptr set, and when next data
frame is coalesced, we lack sk_data_ready() calls to wakeup consumer.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Stephan Springl <springl-k@lar.bfw.de>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 0e698bf
History
Tip revision: 1d57f19539c074105791da6384a8ad674bba8037 authored by Eric Dumazet on 17 September 2012, 12:51:39 UTC
tcp: fix regression in urgent data handling
Tip revision: 1d57f19
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