On May 24, 2010, at 1:38 PM, Kumar Gala wrote:

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
=20
We can't just clear the user read permission in book3e pte, because
that will also clear supervisor read permission.  This surely isn't
desired.  Fix the problem by adding the supervisor read back.
=20
BenH: Slightly simplified the ifdef and applied to ppc64 too
=20
Signed-off-by: Li Yang <redacted>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
For 2.6.34 stable commit 55052eeca6d71d76f7c3f156c0501814d8e5e6d3
=20
arch/powerpc/mm/pgtable_32.c |    8 ++++++++
arch/powerpc/mm/pgtable_64.c |    8 ++++++++
2 files changed, 16 insertions(+), 0 deletions(-)

Wondering what happened to this patch (and 2 other) getting into stable =
queue for .34.x

- k=