From: David S. Miller <davem@davemloft.net>
Date: Thu, 19 May 2016 18:36:50 +0000 (-0700)
Subject: Merge branch 'tcp_bh_fixes'
X-Git-Tag: v4.7-rc1~96^2~26
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=87553aa5212f43d3d14b9b5d1dfba89f1a6e6f21;p=karo-tx-linux.git

Merge branch 'tcp_bh_fixes'

Eric Dumazet says:

====================
net: block BH in TCP callbacks

Four layers using TCP stack were assuming sk_callback_lock could
be locked using read_lock() in their handlers because TCP stack
was running with BH disabled.

This is no longer the case. Since presumably the rest could
also depend on BH being disabled, just use read_lock_bh().

Then each layer might consider switching to RCU protection
and no longer depend on BH.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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87553aa5212f43d3d14b9b5d1dfba89f1a6e6f21