Re: [PATCH v4 05/13] mm/debug_vm_pgtable/savedwrite: Enable savedwrite test with CONFIG_NUMA_BALANCING

2020-09-03 Thread Anshuman Khandual
On 09/02/2020 05:12 PM, Aneesh Kumar K.V wrote: > Saved write support was added to track the write bit of a pte after > marking the pte protnone. This was done so that AUTONUMA can convert > a write pte to protnone and still track the old write bit. When converting > it back we set the pte write

[PATCH v4 05/13] mm/debug_vm_pgtable/savedwrite: Enable savedwrite test with CONFIG_NUMA_BALANCING

2020-09-02 Thread Aneesh Kumar K.V
Saved write support was added to track the write bit of a pte after marking the pte protnone. This was done so that AUTONUMA can convert a write pte to protnone and still track the old write bit. When converting it back we set the pte write bit correctly thereby avoiding a write fault again. Hence