TESTING-ONLY: x86/mm: Expose userspace to full address space by default

For compatibility reasons, we don't normally expose userspace to full
57-bit virtual address space to avoid breakage of applications that
cannot handle pointers above 48-bit.

This patch changes the default for better coverage during testing.

You can still fallback to normal behaviour by running:

	echo n > /sys/kernel/debug/always_use_va57

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
4 files changed