Re: [PATCH] dax: remove VM_MIXEDMAP for fsdax and device dax

2018-06-08 Thread Dan Williams
On Fri, Jun 8, 2018 at 10:00 AM, Dave Jiang wrote: > This patch is reworked from an earlier patch that Dan has posted: > https://patchwork.kernel.org/patch/10131727/ > > VM_MIXEDMAP is used by dax to direct mm paths like vm_normal_page() that > the memory page it is dealing with is not typical mem

[PATCH] dax: remove VM_MIXEDMAP for fsdax and device dax

2018-06-08 Thread Dave Jiang
This patch is reworked from an earlier patch that Dan has posted: https://patchwork.kernel.org/patch/10131727/ VM_MIXEDMAP is used by dax to direct mm paths like vm_normal_page() that the memory page it is dealing with is not typical memory from the linear map. The get_user_pages_fast() path, sinc