From 8133534c760d4083f79d2cde42c636ccc0b2792e Mon Sep 17 00:00:00 2001
From: Sorin Dumitru <sorin@returnze.ro>
Date: Wed, 27 May 2015 22:16:49 +0300
Subject: [PATCH] net: limit tcp/udp rmem/wmem to SOCK_{RCV,SND}BUF_MIN

This is similar to b1cb59cf2efe(net: sysctl_net_core: check SNDBUF
and RCVBUF for min length). I don't think too small values can cause
crashes in the case of udp and tcp, but I've seen this set to too
small values which triggered awful performance. It also makes the
setting consistent across all the wmem/rmem sysctls.

Signed-off-by: Sorin Dumitru <sdumitru@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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