Re: [PATCH] net_sched: fix ip_tos2prio

From: Eric Dumazet <redacted>
Date: Wed, 16 Mar 2011 00:56:07 +0100

From: Dan Siemon <redacted>

ECN support incorrectly maps ECN BESTEFFORT packets to TC_PRIO_FILLER
(1) instead of TC_PRIO_BESTEFFORT (0)

This means ECN enabled flows are placed in pfifo_fast/prio low priority
band, giving ECN enabled flows [ECT(0) and CE codepoints] higher drop
probabilities.

This is rather unfortunate, given we would like ECN being more widely
used.

Ref : http://www.coverfire.com/archives/2011/03/13/pfifo_fast-and-ecn/

Signed-off-by: Dan Siemon <redacted>
Signed-off-by: Eric Dumazet <redacted>
Cc: Dave Täht <redacted>
Cc: Jonathan Morton <redacted>

Applied and queued up for -stable, thanks.