On Mon 17-10-16 11:27:24, Aneesh Kumar K.V wrote:
> Ross Zwisler <ross.zwis...@linux.intel.com> writes:
> 
> > Now that DAX PMD faults are once again working and are now participating in
> > DAX's radix tree locking scheme, allow their config option to be enabled.
> >
> > Signed-off-by: Ross Zwisler <ross.zwis...@linux.intel.com>
> > ---
> >  fs/Kconfig | 1 -
> >  1 file changed, 1 deletion(-)
> >
> > diff --git a/fs/Kconfig b/fs/Kconfig
> > index 2bc7ad7..b6f0fce 100644
> > --- a/fs/Kconfig
> > +++ b/fs/Kconfig
> > @@ -55,7 +55,6 @@ config FS_DAX_PMD
> >     depends on FS_DAX
> >     depends on ZONE_DEVICE
> >     depends on TRANSPARENT_HUGEPAGE
> > -   depends on BROKEN
> >  
> >  endif # BLOCK
> 
> 
> This series made dax_pmd_fault return VM_FAULT_FALLBACK in [PATCH v6 09/17] 
> dax: remove dax_pmd_fault(). 
> That essentially disable dax pmd for ext4. Any plans to fix that ?

I'm working on converting ext4 to the new iomap infrastructure. Once that
is done, it can use new DAX helpers for PMD faults easily.

                                                                Honza
-- 
Jan Kara <j...@suse.com>
SUSE Labs, CR
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