[PATCH] arm64: lib: use pair accessors for copy_*_user routines

[Catalin Marinas]

On Tue, Jul 07, 2015 at 07:21:35PM +0100, Will Deacon wrote:
> The AArch64 instruction set contains load/store pair memory accessors,
> so use these in our copy_*_user routines to transfer 16 bytes per
> iteration.
> 
> Signed-off-by: Will Deacon <will.deacon at arm.com>

It makes sense.

Reviewed-by: Catalin Marinas <catalin.marinas at arm.com>