Commits
Tony Luck authored and Greg Kroah-Hartman committed 207988da56b
guard page for stacks that grow upwards commit 8ca3eb08097f6839b2206e2242db4179aee3cfb3 upstream. pa-risc and ia64 have stacks that grow upwards. Check that they do not run into other mappings. By making VM_GROWSUP 0x0 on architectures that do not ever use it, we can avoid some unpleasant #ifdefs in check_stack_guard_page(). Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: dann frazier <dannf@debian.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>