On 10/01/2015 01:48 AM, Benjamin Herrenschmidt wrote:
> On Wed, 2015-09-30 at 17:37 +0530, Anshuman Khandual wrote:
>>> + if (unlikely(old_pte & _PAGE_BUSY))
>>> + return 0;
>>> + /* If PTE permissions don't match, take page fault */
>>
>> We are already
On Wed, 2015-09-30 at 17:37 +0530, Anshuman Khandual wrote:
> > + if (unlikely(old_pte & _PAGE_BUSY))
> > + return 0;
> > + /* If PTE permissions don't match, take page fault */
>
> We are already in page fault interrupt path, will it be better
> if we
On 09/30/2015 07:57 AM, Aneesh Kumar K.V wrote:
> Signed-off-by: Aneesh Kumar K.V
> ---
> arch/powerpc/mm/Makefile| 3 +
> arch/powerpc/mm/hash64_64k.c| 202 +
> arch/powerpc/mm/hash_low_64.S | 380
>
> arch/powerpc/mm/
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/Makefile| 3 +
arch/powerpc/mm/hash64_64k.c| 202 +
arch/powerpc/mm/hash_low_64.S | 380
arch/powerpc/mm/hash_utils_64.c | 4 +-
4 files changed, 208 insertions(+), 3
