Messages in this thread |  | | Date | Fri, 25 Aug 2017 19:16:07 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap flags |
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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
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