Andrew,
		I have incorporated the changes you suggested, with the exception of 
the check
	for a NULL mm in exit_futex.  Apparently there is a task that exits in 
the boot path
	that has a null mm and causes the kernel to crash on boot without this 
check.

  fs/inode.c                    |    2
  include/linux/fs.h       |    4
  include/linux/futex.h |   33 ++++
  init/Kconfig                 |    9 +
  kernel/exit.c               |    2
  kernel/futex.c             |  398 
++++++++++++++++++++++++++++++++++++++++++++++++++
  6 files changed, 448 insertions(+)

David