From: Pavel Emelyanov <xemul@openvz.org>
Date: Thu, 18 Oct 2007 04:22:42 +0000 (-0700)
Subject: [NET]: Fix the race between sk_filter_(de|at)tach and sk_clone()
X-Git-Tag: v2.6.24-rc1~294^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=47e958eac280c263397582d5581e868c3227a1bd;p=pandora-kernel.git

[NET]: Fix the race between sk_filter_(de|at)tach and sk_clone()

The proposed fix is to delay the reference counter decrement
until the quiescent state pass. This will give sk_clone() a
chance to get the reference on the cloned filter.

Regular sk_filter_uncharge can happen from the sk_free() only
and there's no need in delaying the put - the socket is dead
anyway and is to be release itself.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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