From: Dhananjay Phadke <dhananjay@netxen.com>
Date: Fri, 17 Jul 2009 15:27:07 +0000 (+0000)
Subject: netxen: fix deadlock on dev close
X-Git-Tag: v2.6.31-rc4~11^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2af9cb06d4de1b507ec0fd779ec2ecedee1480a;p=pandora-kernel.git

netxen: fix deadlock on dev close

netxen: fix deadlock on dev close

The tx ring accounting fix in commit cb2107be43d2fc5eadec58b92b
("netxen: fix tx ring accounting") introduced intermittent
deadlock when inteface is going down.

This was possibly combined effect of speculative tx pause,
calling netif_tx_lock instead of queue lock and unclean
synchronization with napi which could end up unmasking
interrupt.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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