Re: Q. lockdep_assert_held() and lockdep_off/on()

From: Peter Zijlstra
Date: Fri Apr 08 2011 - 09:32:40 EST


On Fri, 2011-04-08 at 22:19 +0900, J. R. Okajima wrote:
> Hello Peter Zijlstra and Ingo Molnar,
>
> May I ask you a question about the commit
> f607c66 2009-08-02 lockdep: Introduce lockdep_assert_held()
>
> In short, should lockdep_assert_held() support ->lockdep_recursion?

Probably, however

> Its current definition is
> #define lockdep_assert_held(l) WARN_ON(debug_locks && !lockdep_is_held(l))
>
> When someone somewhere calls lockdep_off() and executes some memory

you're not supposed to do that..


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