Re: [PATCH] debug work struct cancel deadlocks with lockdep

[Peter Zijlstra]

On Wed, 2007-07-04 at 23:12 +0200, Johannes Berg wrote:
> This adds a lockdep_map for each work struct in order to debug
> deadlocks like
>   my_function -> lock(); ...; cancel_work_sync(my_work)
> vs.
>   run_workqueue() -> my_work.f() -> ...; lock(); ...
> 
> which will deadlock if my_work.f() is invoked already but my_function()
> has acquired the lock already.
> 
> Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>

Acked-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/