From: Jarek Poplawski <jarkao2@gmail.com>
Date: Tue, 20 Jan 2009 22:06:26 +0000 (-0800)
Subject: pkt_sched: sch_htb: Fix deadlock in hrtimers triggered by HTB
X-Git-Tag: v2.6.27.13~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9befaf375925471a49159d775b38d42c04e218a1;p=pandora-kernel.git

pkt_sched: sch_htb: Fix deadlock in hrtimers triggered by HTB

[ Upstream commit: none

  This is a quick fix for -stable purposes.  Upstream fixes these
  problems via a large set of invasive hrtimer changes.  ]

Most probably there is a (still unproven) race in hrtimers (before
2.6.29 kernels), which causes a corruption of hrtimers rbtree. This
patch doesn't fix it, but should let HTB avoid triggering the bug.

Reported-by: Denys Fedoryschenko <denys@visp.net.lb>
Reported-by: Badalian Vyacheslav <slavon@bigtelecom.ru>
Reported-by: Chris Caputo <ccaputo@alt.net>
Tested-by: Badalian Vyacheslav <slavon@bigtelecom.ru>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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