[PATCH 0/5] powerpc/pkeys: fixes to pkeys

[Ram Pai]

Assortment of fixes to pkey.

Patch 1  makes pkey consumable in multithreaded applications.

Patch 2  fixes fork behavior to inherit the key attributes.

Patch 3  A off-by-one bug made one key unusable. Fixes it.

Patch 4  Makes pkey-0 less special.

Ram Pai (5):
  powerpc/pkeys: Enable all user-allocatable pkeys at init.
  powerpc/pkeys: Save the pkey registers before fork
  powerpc/pkeys: fix calculation of total pkeys.
  powerpc/pkeys: Preallocate execute-only key
  powerpc/pkeys: make protection key 0 less special

 arch/powerpc/include/asm/pkeys.h |   29 ++++++++--
 arch/powerpc/kernel/process.c    |    1 +
 arch/powerpc/mm/pkeys.c          |  107 ++++++++++++++------------------------
 3 files changed, 64 insertions(+), 73 deletions(-)