* Ingo Molnar <mingo@elte.hu> wrote:

quoted text
> > Defining GENERIC_LOCKBREAK in arch/s390/Kconfig takes care of it. 
> > I'll cook up a patch and queue it in git390.
> 
> the one below should do the trick.

ah, i see the one you queued up (below) is even better :)

	Ingo

------------->
Subject: [PATCH] Define GENERIC_LOCKBREAK.

From: Martin Schwidefsky <schwidefsky@de.ibm.com>

Fix compile error:

  CC      arch/s390/kernel/asm-offsets.s
In file included from 
arch/s390/kernel/asm-offsets.c:7:
include/linux/sched.h: In function 'spin_needbreak':
include/linux/sched.h:1931: error: implicit declaration of function '__raw_spin_is_contended'
make[2]: *** [arch/s390/kernel/asm-offsets.s] Error 1

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

 arch/s390/Kconfig |    5 +++++
 1 file changed, 5 insertions(+)

diff -urpN linux-2.6/arch/s390/Kconfig linux-2.6-patched/arch/s390/Kconfig
--- linux-2.6/arch/s390/Kconfig	2008-01-31 13:57:33.000000000 +0100
+++ linux-2.6-patched/arch/s390/Kconfig	2008-01-31 13:57:42.000000000 +0100
@@ -47,6 +47,11 @@ config NO_IOMEM
 config NO_DMA
 	def_bool y
 
+config GENERIC_LOCKBREAK
+	bool
+	default y
+	depends on SMP && PREEMPT
+
 mainmenu "Linux Kernel Configuration"
 
 config S390
--
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