On Sun, May 26, 2019 at 09:47:36AM -0400, Alexandre Ghiti wrote: > arm64 handles top-down mmap layout in a way that can be easily reused > by other architectures, so make it available in mm. > It then introduces a new config ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT > that can be set by other architectures to benefit from those functions. > Note that this new config depends on MMU being enabled, if selected > without MMU support, a warning will be thrown. > > Suggested-by: Christoph Hellwig <hch@xxxxxxxxxxxxx> > Signed-off-by: Alexandre Ghiti <alex@xxxxxxxx> > Reviewed-by: Christoph Hellwig <hch@xxxxxx> Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
