On Tue, Nov 20, 2018 at 7:27 PM Huaisheng Ye <yehs2007@xxxxxxxx> wrote: > > From: Huaisheng Ye <yehs1@xxxxxxxxxx> > > Changes > v1->v2: > Add NULL funtions for origin_dax_direct_access and > origin_dax_copy_from/to_iter in order to avoid building > error when CONFIG_DAX_DRIVER has NOT been enabled. > > [v1]: https://lkml.org/lkml/2018/11/20/759 > > This series patches are used to realize the dax_operations for dm-snapshot > with persistent memory device. How does this interact with mmap write faults if the mapping is dax and the page needs to be cow'd?
