Add session handling to tpm spaces

Here's round two of the session handling patches.  I folded in the
review feedback (really all to patch 1) and tidied up a few parts of
patch 2.

James

---

James Bottomley (2):
  tpm2: add session handle context saving and restoring to the space code
  tpm2-space: add handling for global session exhaustion

 drivers/char/tpm/tpm-chip.c   |   7 +
 drivers/char/tpm/tpm.h        |  43 +++++-
 drivers/char/tpm/tpm2-cmd.c   |  15 ++
 drivers/char/tpm/tpm2-space.c | 313 +++++++++++++++++++++++++++++++++++++++++-
 drivers/char/tpm/tpms-dev.c   |  19 ++-
 5 files changed, 385 insertions(+), 12 deletions(-)

-- 
2.6.6