From: David S. Miller <davem@davemloft.net>
Date: Tue, 19 Aug 2008 04:03:15 +0000 (-0700)
Subject: pkt_sched: Don't hold qdisc lock over qdisc_destroy().
X-Git-Tag: v2.6.27-rc4~39^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d8863a29c4755a0461cd31b6865026187d6c43a;p=pandora-kernel.git

pkt_sched: Don't hold qdisc lock over qdisc_destroy().

Based upon reports by Denys Fedoryshchenko, and feedback
and help from Jarek Poplawski and Herbert Xu.

We always either:

1) Never made an external reference to this qdisc.

or

2) Did a dev_deactivate() which purged all asynchronous
   references.

So do not lock the qdisc when we call qdisc_destroy(),
it's illegal anyways as when we drop the lock this is
free'd memory.

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

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