Here's three miscellaneous patches on top of the tmpfs radix_tree swap
work in 3.0-rc6-mm1: an overdue unrelated cleanup in radix_tree_tag_get(),
an unfortunately necessary speedup to tmpfs swapoff, and an attempt to
address your review feedback on the exceptional cases in filemap.c.

1/3 radix_tree: clean away saw_unset_tag leftovers
2/3 tmpfs radix_tree: locate_item to speed up swapoff
3/3 mm: clarify the radix_tree exceptional cases

 include/linux/radix-tree.h |    1 
 lib/radix-tree.c           |  102 ++++++++++++++++++++++++++++++++---
 mm/filemap.c               |   66 +++++++++++++++-------
 mm/mincore.c               |    1 
 mm/shmem.c                 |   50 +++--------------
 5 files changed, 149 insertions(+), 71 deletions(-)

Hugh