On Fri, Aug 25, 2017 at 09:02:36AM -0700, Christoph Hellwig wrote: > On Fri, Aug 25, 2017 at 06:58:03PM +0300, Kirill A. Shutemov wrote: > > Not all archs are ready for this: > > > > arch/parisc/include/uapi/asm/mman.h:#define MAP_TYPE 0x03 /* Mask for type of mapping */ > > arch/parisc/include/uapi/asm/mman.h:#define MAP_FIXED 0x04 /* Interpret addr exactly */ > > I'd be happy to say that we should not care about parisc for > persistent memory. We'll just have to find a way to exclude > parisc without making life too ugly. I don't think creapling mmap() interface for one arch is the right way to go. I think the interface should be universal. I may imagine MAP_DIRECT can be useful not only for persistent memory. For tmpfs instead of mlock()? -- Kirill A. Shutemov
