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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-20 11:21:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-20 11:21:17 -0800 |
| commit | f7458a5d631df2ecdbfe4a606053aba19913cc41 (patch) | |
| tree | 26df2860fe3a750ed3b0359178d2b4c4fe8798d2 /Documentation/admin-guide | |
| parent | 575260e3f8f8ac72dc0c41a4a20190d1a5f2b887 (diff) | |
| parent | a8709fa4a06d4af5f86e3660839531cbe0f2a19b (diff) | |
| download | linux-f7458a5d631df2ecdbfe4a606053aba19913cc41.tar.bz2 | |
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
...
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index d8fc55aa9d44..10d86d938a23 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3269,6 +3269,13 @@ Lazy RCU callbacks are those which RCU can prove do nothing more than free memory. + rcutree.rcu_kick_kthreads= [KNL] + Cause the grace-period kthread to get an extra + wake_up() if it sleeps three times longer than + it should at force-quiescent-state time. + This wake_up() will be accompanied by a + WARN_ONCE() splat and an ftrace_dump(). + rcuperf.gp_exp= [KNL] Measure performance of expedited synchronous grace-period primitives. |