From: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Date: Tue, 20 Mar 2007 18:23:18 +0000 (-0300)
Subject: [DCCP]: Provide function for RTT sampling
X-Git-Tag: v2.6.22-rc1~1128^2~227
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4712a792ee661921374c163eb6a4d06e33fd305f;p=pandora-kernel.git

[DCCP]: Provide function for RTT sampling

A recurring problem, in particular in the CCID code, is that RTT samples
from packets with timestamp echo and elapsed time options need to be taken.

This service is provided via a new function dccp_sample_rtt in this patch.
Furthermore, to protect against `insane' RTT samples, the sampled value
is bounded between 100 microseconds and 4 seconds - for which u32 is sufficient.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed