> > > Moreover, if FUSE implements syncing, then the sync from within the 
> > > freezer
> > > will almost certainly deadlock.
> > 
> > Rafael, think positively: by the time fuse implements sync(), the
> > freezer will be long gone ;)
> 
> Now you are entering really dangerous territory.
> If you can implement a meaningfull sync method, you must have dirty
> pages in the page cache. That means you are in the page freeing path
> of the vm. Then we are in real trouble. Don't even think about it.

VM induced deadlocks are real nasty.  I have thought about them a lot
already.  Suspend shouldn't introduce any big surprises.

Miklos
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