From: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Date: Sun, 19 Sep 2010 18:10:52 +0000 (+0200)
Subject: dccp tfrc/ccid-3: computing the loss rate from the Loss Event Rate
X-Git-Tag: v2.6.37-rc1~147^2~388^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=792e6d3389061ad449429b9ba228eb758c247ea0;p=pandora-kernel.git

dccp tfrc/ccid-3: computing the loss rate from the Loss Event Rate

This adds a function to take care of the following, separate cases occurring in
the computation of the Loss Rate p:

 * 1/(2^32-1) is mapped into 0% as per RFC 4342, 8.5;
 * 1/0        is mapped into 100%, the maximum;
 * to avoid that p = 1/x is rounded down to 0 when x is very large, since this
   means accidentally re-entering slow-start indicated by p == 0, the minimum
   resolution value of p is now returned instead;
 * a bug in ccid3_hc_rx_getsockopt is fixed: 1/0 was mapped into ~0U.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
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