Messages in this thread | | | Date | Wed, 1 May 2019 21:25:25 +0200 | From | Peter Zijlstra <> | Subject | Re: [RT WARNING] DEBUG_LOCKS_WARN_ON(rt_mutex_owner(lock) != current) with fsfreeze (4.19.25-rt16) |
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On Wed, May 01, 2019 at 12:22:34PM -0700, Davidlohr Bueso wrote: > On Wed, 01 May 2019, Peter Zijlstra wrote: > > > Nah, the percpu_rwsem abuse by the freezer is atrocious, we really > > should not encourage that. Also, it completely wrecks -RT. > > > > Hence the proposed patch. > > Is this patch (and removing rcuwait) only intended for rt?
Seeing how we want to have -rt upstream, and how horrible that current fixup is; I'm tempted to say that barring a better solution, we'd want this upstream.
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