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authorLuck, Tony <tony.luck@intel.com>2010-08-24 11:44:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-24 12:13:20 -0700
commit8ca3eb08097f6839b2206e2242db4179aee3cfb3 (patch)
tree32b9f033230d615d248fa0bbfa1a0c644a422ed8 /kernel
parent9559fcdbff4f93d29af04478bbc48294519424f5 (diff)
guard page for stacks that grow upwards
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>
Diffstat (limited to 'kernel')
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