On Fri, Feb 16, 2018 at 03:51:40PM +0530, Naveen N. Rao wrote:
Naveen N. Rao wrote:
From: Benjamin Herrenschmidt benh@kernel.crashing.org
Commit 398a719d34a1 ("powerpc/mm: Update bits used to skip hash_page") mistakenly dropped the DSISR_DABRMATCH bit from the mask of bit tested to skip trying to hash a page.
As a result, the DABR matches would no longer be detected.
This adds it back. We open code it in the 2 places where it matters rather than fold it into DSISR_BAD_FAULT_32S/64S because this isn't technically a bad fault and while we would never hit it with the current code, I prefer if page_fault_is_bad() didn't trigger on these.
Fixes: 398a719d34a1 ("powerpc/mm: Update bits used to skip hash_page") Cc: stable@vger.kernel.org # v4.14 Tested-by: Pedro Miraglia Franco de Carvalho pedromfc@br.ibm.com Signed-off-by: Benjamin Herrenschmidt benh@kernel.crashing.org
Not quite sure if this is required, but: Signed-off-by: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com
Thanks, now queued up.
greg k-h