On Tue, Sep 13, 2016 at 12:05:20PM +0200, Peter Zijlstra wrote: > 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.
Blergh, I'll do it anyway.. hold on for an email asking specific questions.
