From: Julian Anastasov <ja@ssi.bg>
Date: Fri, 6 Feb 2015 07:44:44 +0000 (+0200)
Subject: ipvs: use 64-bit rates in stats
X-Git-Tag: omap-for-v4.1/fixes-rc1~141^2~373^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd67cd5eb25ae9a7bafbfd3d52d4c05e1d80af3b;p=pandora-kernel.git

ipvs: use 64-bit rates in stats

IPVS stats are limited to 2^(32-10) conns/s and packets/s,
2^(32-5) bytes/s. It is time to use 64 bits:

* Change all conn/packet kernel counters to 64-bit and update
them in u64_stats_update_{begin,end} section

* In kernel use struct ip_vs_kstats instead of the user-space
struct ip_vs_stats_user and use new func ip_vs_export_stats_user
to export it to sockopt users to preserve compatibility with
32-bit values

* Rename cpu counters "ustats" to "cnt"

* To netlink users provide additionally 64-bit stats:
IPVS_SVC_ATTR_STATS64 and IPVS_DEST_ATTR_STATS64. Old stats
remain for old binaries.

* We can use ip_vs_copy_stats in ip_vs_stats_percpu_show

Thanks to Chris Caputo for providing initial patch for ip_vs_est.c

Signed-off-by: Chris Caputo <ccaputo@alt.net>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
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