| Date | Tue, 13 Sep 2016 12:05:20 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v3 07/15] lockdep: Implement crossrelease feature |
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On Tue, Sep 13, 2016 at 06:45:06PM +0900, Byungchul Park wrote: > Crossrelease feature calls a lock 'crosslock' if it is releasable > in any context. For crosslock, all locks having been held in the > release context of the crosslock, until eventually the crosslock > will be released, have dependency with the crosslock. > > Using crossrelease feature, we can detect deadlock possibility even > for lock_page(), wait_for_complete() and so on. >
Completely inadequate.
Please explain how cross-release does what it does. Talk about lock graphs and such.
I do not have time to reverse engineer this stuff.
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