Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RCU updates from Ingo Molnar:
 "The RCU changes in this cycle are:

   - Dynticks updates, consolidating open-coded counter accesses into a
     well-defined API

   - SRCU updates: Simplify algorithm, add formal verification

   - Documentation updates

   - Miscellaneous fixes

   - Torture-test updates

  Most of the diffstat comes from the relatively large documentation
  update"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
  srcu: Reduce probability of SRCU ->unlock_count[] counter overflow
  rcutorture: Add CBMC-based formal verification for SRCU
  srcu: Force full grace-period ordering
  srcu: Implement more-efficient reader counts
  rcu: Adjust FQS offline checks for exact online-CPU detection
  rcu: Check cond_resched_rcu_qs() state less often to reduce GP overhead
  rcu: Abstract extended quiescent state determination
  rcu: Abstract dynticks extended quiescent state enter/exit operations
  rcu: Add lockdep checks to synchronous expedited primitives
  rcu: Eliminate unused expedited_normal counter
  llist: Clarify comments about when locking is needed
  rcu: Fix comment in rcu_organize_nocb_kthreads()
  rcu: Enable RCU tracepoints by default to aid in debugging
  rcu: Make rcu_cpu_starting() use its "cpu" argument
  rcu: Add comment headers to expedited-grace-period counter functions
  rcu: Don't wake rcuc/X kthreads on NOCB CPUs
  rcu: Re-enable TASKS_RCU for User Mode Linux
  rcu: Once again use NMI-based stack traces in stall warnings
  rcu: Remove short-term CPU kicking
  rcu: Add long-term CPU kicking
  ...

1 files changed, 0 insertions, 14 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 4dd8bd232a1d..2655abb8f310 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -529,7 +529,6 @@ config SRCU
 config TASKS_RCU
         bool
         default n
-        depends on !UML
         select SRCU
         help
           This option enables a task-based RCU implementation that uses
@@ -781,19 +780,6 @@ config RCU_NOCB_CPU_ALL
 
 endchoice
 
-config RCU_EXPEDITE_BOOT
-        bool
-        default n
-        help
-          This option enables expedited grace periods at boot time,
-          as if rcu_expedite_gp() had been invoked early in boot.
-          The corresponding rcu_unexpedite_gp() is invoked from
-          rcu_end_inkernel_boot(), which is intended to be invoked
-          at the end of the kernel-only boot sequence, just before
-          init is exec'ed.
-
-          Accept the default if unsure.
-
 endmenu # "RCU Subsystem"
 
 config BUILD_BIN2C