Re: [PATCH 1/3] jump label: add enabled/disabled state to jumplabel key entries

[Peter Zijlstra]

On Wed, 2010-11-24 at 10:21 -0500, Jason Baron wrote:
> 
> The keys are simply the address of a variable or structure (so as to be
> unique). We can put pointers or anything else in the variable. 

If you keep the key type fixed, like say an atomic_t, you can easily
read it and know if an jump-label is enabled or disabled if you load its
text later (modules).
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