Re: slub: UML and CONFIG_CMPXCHG_LOCAL

[Christoph Lameter]

On Sun, 29 May 2011, Richard Weinberger wrote:

> With commit 1759415e you've removed all #ifdef CONFIG_CMPXCHG_LOCAL's from slub.
> This change breaks slub (again) on UML.
> UML does not implement this_cpu_cmpxchg16b_emu().

It does not have to implement it. The this_cpu_ops can fall back to
generic implementations.

> Is there anything I can do to have slub on UML?

Yes, rely on the generic implementation of this_cpu_cmpxchg.
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