tree 1b711b7f5c1f486a07289edb43db4f99f05d6e5a
parent c191f6ccee11b79fb562c36007a5af31c705c9e2
author Hugh Dickins <hughd@google.com> 1304988282 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1304988737 -0700

vm: fix vm_pgoff wrap in upward expansion

Commit a626ca6a6564 ("vm: fix vm_pgoff wrap in stack expansion") fixed
the case of an expanding mapping causing vm_pgoff wrapping when you had
downward stack expansion.  But there was another case where IA64 and
PA-RISC expand mappings: upward expansion.

This fixes that case too.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>