[GIT PULL] locking fixes

[Ingo Molnar <mingo@kernel.org>]

Linus,

Please pull the latest locking-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking-urgent-for-linus

   # HEAD: 92ccc262e485781ff4c0fb3b7c77a619282df49a tools/lib/lockdep: Add missing declaration of 'pr_cont()'

Misc fixes:

 - Fix a S390 boot hang that was caused by the lock-break logic. Remove lock-break
   to begin with, as review suggested it was unreasonably fragile and our
   confidence in its continued good health is lower than our confidence in its
   removal.

 - Remove the lockdep cross-release checking code for now, because of unresolved
   false positive warnings. This should make lockdep work well everywhere again.

 - Get rid of the final (and single) ACCESS_ONCE() straggler and remove the API 
   from v4.15.

 - Fix a liblockdep build warning.

 Thanks,

	Ingo

------------------>
Ingo Molnar (1):
      locking/lockdep: Remove the cross-release locking checks

Mark Rutland (4):
      tools/perf: Convert ACCESS_ONCE() to READ_ONCE()
      tools/include: Remove ACCESS_ONCE()
      compiler.h: Remove ACCESS_ONCE()
      checkpatch: Remove ACCESS_ONCE() warning

Mengting Zhang (1):
      tools/lib/lockdep: Add missing declaration of 'pr_cont()'

Will Deacon (2):
      locking/core: Fix deadlock during boot on systems with GENERIC_LOCKBREAK
      locking/core: Remove break_lock field when CONFIG_GENERIC_LOCKBREAK=y


 Documentation/locking/crossrelease.txt | 874 ---------------------------------
 include/linux/compiler.h               |  47 +-
 include/linux/completion.h             |  45 --
 include/linux/lockdep.h                | 125 -----
 include/linux/rwlock_types.h           |   3 -
 include/linux/sched.h                  |  11 -
 include/linux/spinlock.h               |   5 -
 include/linux/spinlock_types.h         |   3 -
 kernel/locking/lockdep.c               | 652 ++----------------------
 kernel/locking/spinlock.c              |  13 +-
 lib/Kconfig.debug                      |  33 --
 scripts/checkpatch.pl                  |  22 -
 tools/include/linux/compiler.h         |  21 +-
 tools/include/linux/lockdep.h          |   1 +
 tools/perf/util/mmap.h                 |   2 +-
 15 files changed, 60 insertions(+), 1797 deletions(-)
 delete mode 100644 Documentation/locking/crossrelease.txt