Messages in this thread |  | | | Date | Thu, 5 Jul 2007 10:48:06 +0200 | | From | Ingo Molnar <> | | Subject | Re: [PATCH] debug workqueue flushing deadlocks with lockdep |
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* Johannes Berg <johannes@sipsolutions.net> wrote:
> This patch adds a fake lock to each workqueue in order to debug things > where you have something like > > my_function() -> lock(); ...; flush_workqueue(); ... > vs > run_workqueue() -> my_work() -> ...; lock(); ... > > which can obviously deadlock if my_work is scheduled when my_function() > is invoked (but hasn't locked yet.) > > Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
i'm still impressed by the elegancy of your idea :)
Acked-by: Ingo Molnar <mingo@elte.hu>
btw., small patch format comment: it would be useful (in the future) to send such combined patches as:
[patch 0/2] general description [patch 1/2] first patch [patch 2/2] second patch
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