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Date: Thu, 21 Jan 2010 18:14:37 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: x86: clean up rwsem type system
Message-ID: <20100121171437.GA16994@elte.hu>
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* Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Sun, 17 Jan 2010, Ingo Molnar wrote:
> > 
> > FYI, -tip testing found that these changes break the UML build:
> > 
> > kernel/built-in.o: In function `__up_read':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:192: undefined reference to `call_rwsem_wake'
> > kernel/built-in.o: In function `__up_write':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:210: undefined reference to `call_rwsem_wake'
> > kernel/built-in.o: In function `__downgrade_write':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:228: undefined reference to `call_rwsem_downgrade_wake'
> > kernel/built-in.o: In function `__down_read':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:112: undefined reference to `call_rwsem_down_read_failed'
> > kernel/built-in.o: In function `__down_write_nested':
> > /home/mingo/tip/arch/x86/include/asm/rwsem.h:154: undefined reference to `call_rwsem_down_write_failed'
> > collect2: ld returned 1 exit status
> 
> I think something like this should fix it.

That did the trick - thanks!

	Ingo