Re: [PATCH v6 3/5] mm: introduce mmap3 for safely defining new mmap flags

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>



[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]
  Powered by Linux