ia64: mark special ia64 memory areas anonymous

Commit bfd40eaff5ab ("mm: fix vma_is_anonymous() false-positives") made
newly allocated vma's have a dummy vm_ops field so that they wouldn't be
mistaken for anonymous mappings, and if you wanted an anonymous vma you
had to explicitly say so by calling "vma_set_anonymous()" on it.

However, it missed the two special vmas that ia64 processes have: the
register backing store and the NaT page.  So they wouldn't actually act
like anonymous ranges, and page faults on them caused a SIGBUS rather
than the creation of a new anon page in them.

That obviously will make any ia64 binary very unhappy indeed, and the
boot fails early.

Fixes: bfd40eaff5ab ("mm: fix vma_is_anonymous() false-positives")
Reported-by: Tony Luck <[email protected]>
Cc: Kirill Shutemov <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: John Stultz <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions