Re: x86: clean up rwsem type system

From: Ingo Molnar
Date: Thu Jan 21 2010 - 12:14:51 EST



* Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> 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
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