Re: [PATCH v8 01/10] fs: Allow fine-grained control of folio sizes

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> > > 
> > > Why CONFIG_BLOCK? I think it is enough if it comes from the FS side
> > > right? And for now, the only FS that needs that sort of bs > ps 
> > > guarantee is XFS with this series. Other filesystems such as bcachefs 
> > > that call mapping_set_large_folios() only enable it as an optimization
> > > and it is not needed for the filesystem to function.
> > > 
> > > So this is my conclusion from the conversation:
> > > - Add a dependency in Kconfig on THP for XFS until we fix the dependency
> > >   of large folios on THP
> > 
> > THP isn't supported on some arches, so isn't this effectively saying XFS can no
> > longer be used with those arches, even if the bs <= ps?
> 
> I'm good with that - we're already long past the point where we try


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