The following commit:
commit 64b3d0e812
Author: Benjamin Herrenschmidt <[email protected]>
Date: Thu Dec 18 19:13:51 2008 +0000
powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED
broke setting of the _PAGE_COHERENT bit in the PPC HW PTE. Since we now
actually set _PAGE_COHERENT in the Linux PTE we shouldn't be clearing it
out before we propogate it to the PPC HW PTE.
Reported-by: Martyn Welch <[email protected]>
Signed-off-by: Kumar Gala <[email protected]>
Signed-off-by: Benjamin Herrenschmidt <[email protected]>
f99fb8a2cb