Ben Hutchings:
> > > If there is no lock higher than mmap_sem that might be used in this way,
> > > then there is no problem and there is also no need for using the
> > > workqueue.
> > 
> > ??
> > I may be confused again.
> > Why workqueue is unnecessary?
>  
> The work item runs on *some* workqueue.

??
Do you mean aufs_mmap() can call ..._file() directly in such case, even
LSM tries acquiring mmap_sem?


J. R. Okajima

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