From: Ursula Braun <braunu@de.ibm.com>
Date: Fri, 8 Feb 2008 02:06:52 +0000 (-0800)
Subject: [IUCV]: wrong irq-disabling locking at module load time
X-Git-Tag: v2.6.25-rc1~45^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=435bc9dfc6927eed9465e297d7aca1217aa61956;p=pandora-kernel.git

[IUCV]: wrong irq-disabling locking at module load time

Linux may hang when running af_iucv socket programs concurrently
with a load of module netiucv. iucv_register() tries to take the
iucv_table_lock with spin_lock_irq. This conflicts with
iucv_connect() which has a need for an smp_call_function while
holding the iucv_table_lock.
Solution: use bh-disabling locking in iucv_register()

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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