From: Eric Dumazet <edumazet@google.com>
Date: Tue, 3 Jul 2012 20:55:21 +0000 (+0000)
Subject: netem: add limitation to reordered packets
X-Git-Tag: v3.5~24^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=960fb66e520a405dde39ff883f17ff2669c13d85;p=pandora-kernel.git

netem: add limitation to reordered packets

Fix two netem bugs :

1) When a frame was dropped by tfifo_enqueue(), drop counter
   was incremented twice.

2) When reordering is triggered, we enqueue a packet without
   checking queue limit. This can OOM pretty fast when this
   is repeated enough, since skbs are orphaned, no socket limit
   can help in this situation.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Mark Gordon <msg@google.com>
Cc: Andreas Terzis <aterzis@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Hagen Paul Pfeifer <hagen@jauu.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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