On Mon, Apr 11, 2016 at 07:08:38PM +0800, Xishi Qiu wrote: > On 2016/4/5 16:22, Chen Feng wrote: > > > Make the pfn always valid when using flat memory. > > If the reserved memory is not align to memblock-size, > > there will be holes in zone. > > > > This patch makes the memory in buddy always in the > > array of mem-map. > > > > Signed-off-by: Chen Feng <puck.chen@xxxxxxxxxxxxx> > > Signed-off-by: Fu Jun <oliver.fu@xxxxxxxxxxxxx> > > --- > > arch/arm64/mm/init.c | 7 ++++--- > > 1 file changed, 4 insertions(+), 3 deletions(-) > > > > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c > > index ea989d8..0e1d5b7 100644 > > --- a/arch/arm64/mm/init.c > > +++ b/arch/arm64/mm/init.c > > @@ -306,7 +306,8 @@ static void __init free_unused_memmap(void) > > How about let free_unused_memmap() support for CONFIG_SPARSEMEM_VMEMMAP? We would need extra care to check that the memmap was actually allocated in the first place. -- Catalin -- 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>