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Groups > linux.kernel > #1624927
| From | "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 tip/core/rcu 10/39] rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle() |
| Date | 2017-04-18 01:50 +0200 |
| Message-ID | <txoz8-789-15@gated-at.bofh.it> (permalink) |
| References | <txoz7-789-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The rcu_momentary_dyntick_idle() function scans the RCU flavors, checking
that one of them still needs a quiescent state before doing an expensive
atomic operation on the ->dynticks counter. However, this check reduces
overhead only after a rare race condition, and increases complexity. This
commit therefore removes the scan and the mechanism enabling the scan.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
.../Design/Data-Structures/Data-Structures.html | 4 +-
kernel/rcu/tree.c | 62 +++++-----------------
kernel/rcu/tree.h | 3 +-
3 files changed, 15 insertions(+), 54 deletions(-)
diff --git a/Documentation/RCU/Design/Data-Structures/Data-Structures.html b/Documentation/RCU/Design/Data-Structures/Data-Structures.html
index 3d0311657533..e4bf20a68fa3 100644
--- a/Documentation/RCU/Design/Data-Structures/Data-Structures.html
+++ b/Documentation/RCU/Design/Data-Structures/Data-Structures.html
@@ -1104,7 +1104,7 @@ Its fields are as follows:
1 int dynticks_nesting;
2 int dynticks_nmi_nesting;
3 atomic_t dynticks;
- 4 int rcu_sched_qs_mask;
+ 4 bool rcu_need_heavy_qs;
5 unsigned long rcu_qs_ctr;
</pre>
@@ -1124,7 +1124,7 @@ CPU's transitions to and from dyntick-idle mode, so that this counter
has an even value when the CPU is in dyntick-idle mode and an odd
value otherwise.
-</p><p>The <tt>->rcu_sched_qs_mask</tt> field is used
+</p><p>The <tt>->rcu_need_heavy_qs</tt> field is used
to record the fact that the RCU core code would really like to
see a quiescent state from the corresponding CPU, so much so that
it is willing to call for heavy-weight dyntick-counter operations.
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index fbee1d729c4b..3c62ea06edb3 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -443,44 +443,14 @@ bool rcu_eqs_special_set(int cpu)
* memory barriers to let the RCU core know about it, regardless of what
* this CPU might (or might not) do in the near future.
*
- * We inform the RCU core by emulating a zero-duration dyntick-idle
- * period, which we in turn do by incrementing the ->dynticks counter
- * by two.
+ * We inform the RCU core by emulating a zero-duration dyntick-idle period.
*
* The caller must have disabled interrupts.
*/
static void rcu_momentary_dyntick_idle(void)
{
- struct rcu_data *rdp;
- int resched_mask;
- struct rcu_state *rsp;
-
- /*
- * Yes, we can lose flag-setting operations. This is OK, because
- * the flag will be set again after some delay.
- */
- resched_mask = raw_cpu_read(rcu_dynticks.rcu_sched_qs_mask);
- raw_cpu_write(rcu_dynticks.rcu_sched_qs_mask, 0);
-
- /* Find the flavor that needs a quiescent state. */
- for_each_rcu_flavor(rsp) {
- rdp = raw_cpu_ptr(rsp->rda);
- if (!(resched_mask & rsp->flavor_mask))
- continue;
- smp_mb(); /* rcu_sched_qs_mask before cond_resched_completed. */
- if (READ_ONCE(rdp->mynode->completed) !=
- READ_ONCE(rdp->cond_resched_completed))
- continue;
-
- /*
- * Pretend to be momentarily idle for the quiescent state.
- * This allows the grace-period kthread to record the
- * quiescent state, with no need for this CPU to do anything
- * further.
- */
- rcu_dynticks_momentary_idle();
- break;
- }
+ raw_cpu_write(rcu_dynticks.rcu_need_heavy_qs, false);
+ rcu_dynticks_momentary_idle();
}
/*
@@ -494,7 +464,7 @@ void rcu_note_context_switch(void)
trace_rcu_utilization(TPS("Start context switch"));
rcu_sched_qs();
rcu_preempt_note_context_switch();
- if (unlikely(raw_cpu_read(rcu_dynticks.rcu_sched_qs_mask)))
+ if (unlikely(raw_cpu_read(rcu_dynticks.rcu_need_heavy_qs)))
rcu_momentary_dyntick_idle();
trace_rcu_utilization(TPS("End context switch"));
barrier(); /* Avoid RCU read-side critical sections leaking up. */
@@ -519,7 +489,7 @@ void rcu_all_qs(void)
unsigned long flags;
barrier(); /* Avoid RCU read-side critical sections leaking down. */
- if (unlikely(raw_cpu_read(rcu_dynticks.rcu_sched_qs_mask))) {
+ if (unlikely(raw_cpu_read(rcu_dynticks.rcu_need_heavy_qs))) {
local_irq_save(flags);
rcu_momentary_dyntick_idle();
local_irq_restore(flags);
@@ -1275,7 +1245,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
bool *isidle, unsigned long *maxj)
{
unsigned long jtsq;
- int *rcrmp;
+ bool *rnhqp;
unsigned long rjtsc;
struct rcu_node *rnp;
@@ -1332,7 +1302,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
* in-kernel CPU-bound tasks cannot advance grace periods.
* So if the grace period is old enough, make the CPU pay attention.
* Note that the unsynchronized assignments to the per-CPU
- * rcu_sched_qs_mask variable are safe. Yes, setting of
+ * rcu_need_heavy_qs variable are safe. Yes, setting of
* bits can be lost, but they will be set again on the next
* force-quiescent-state pass. So lost bit sets do not result
* in incorrect behavior, merely in a grace period lasting
@@ -1346,16 +1316,11 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
* is set too high, we override with half of the RCU CPU stall
* warning delay.
*/
- rcrmp = &per_cpu(rcu_dynticks.rcu_sched_qs_mask, rdp->cpu);
- if (time_after(jiffies, rdp->rsp->gp_start + jtsq) ||
- time_after(jiffies, rdp->rsp->jiffies_resched)) {
- if (!(READ_ONCE(*rcrmp) & rdp->rsp->flavor_mask)) {
- WRITE_ONCE(rdp->cond_resched_completed,
- READ_ONCE(rdp->mynode->completed));
- smp_mb(); /* ->cond_resched_completed before *rcrmp. */
- WRITE_ONCE(*rcrmp,
- READ_ONCE(*rcrmp) + rdp->rsp->flavor_mask);
- }
+ rnhqp = &per_cpu(rcu_dynticks.rcu_need_heavy_qs, rdp->cpu);
+ if (!READ_ONCE(*rnhqp) &&
+ (time_after(jiffies, rdp->rsp->gp_start + jtsq) ||
+ time_after(jiffies, rdp->rsp->jiffies_resched))) {
+ WRITE_ONCE(*rnhqp, true);
rdp->rsp->jiffies_resched += 5; /* Re-enable beating. */
}
@@ -4169,7 +4134,6 @@ static void __init rcu_init_one(struct rcu_state *rsp)
static const char * const fqs[] = RCU_FQS_NAME_INIT;
static struct lock_class_key rcu_node_class[RCU_NUM_LVLS];
static struct lock_class_key rcu_fqs_class[RCU_NUM_LVLS];
- static u8 fl_mask = 0x1;
int levelcnt[RCU_NUM_LVLS]; /* # nodes in each level. */
int levelspread[RCU_NUM_LVLS]; /* kids/node in each level. */
@@ -4191,8 +4155,6 @@ static void __init rcu_init_one(struct rcu_state *rsp)
for (i = 1; i < rcu_num_lvls; i++)
rsp->level[i] = rsp->level[i - 1] + levelcnt[i - 1];
rcu_init_levelspread(levelspread, levelcnt);
- rsp->flavor_mask = fl_mask;
- fl_mask <<= 1;
/* Initialize the elements themselves, starting from the leaves. */
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 76e4467bc765..b212cd0f22c7 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -113,7 +113,7 @@ struct rcu_dynticks {
/* Process level is worth LLONG_MAX/2. */
int dynticks_nmi_nesting; /* Track NMI nesting level. */
atomic_t dynticks; /* Even value for idle, else odd. */
- int rcu_sched_qs_mask; /* GP old, need heavy quiescent state. */
+ bool rcu_need_heavy_qs; /* GP old, need heavy quiescent state. */
unsigned long rcu_qs_ctr; /* Light universal quiescent state ctr. */
#ifdef CONFIG_NO_HZ_FULL_SYSIDLE
long long dynticks_idle_nesting;
@@ -484,7 +484,6 @@ struct rcu_state {
struct rcu_node *level[RCU_NUM_LVLS + 1];
/* Hierarchy levels (+1 to */
/* shut bogus gcc warning) */
- u8 flavor_mask; /* bit in flavor mask. */
struct rcu_data __percpu *rda; /* pointer of percu rcu_data. */
call_rcu_func_t call; /* call_rcu() flavor. */
int ncpus; /* # CPUs seen so far. */
--
2.5.2
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH tip/core/rcu 0/40] SRCU callback parallelization for 4.12 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-12 19:50 +0200
[PATCH tip/core/rcu 03/40] srcu: Consolidate batch checking into rcu_all_batches_empty() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-12 20:00 +0200
[PATCH tip/core/rcu 05/40] rcu: Semicolon inside RCU_TRACE() for rcu.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-12 20:00 +0200
[PATCH tip/core/rcu 11/40] rcu: Pull rcu_sched_qs_mask into rcu_dynticks structure "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-12 20:00 +0200
Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling Peter Zijlstra <peterz@infradead.org> - 2017-04-13 12:00 +0200
Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-13 18:40 +0200
Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-13 19:50 +0200
Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling Peter Zijlstra <peterz@infradead.org> - 2017-04-13 12:00 +0200
Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-13 19:00 +0200
[PATCH v2 tip/core/rcu 0/40] SRCU callback parallelization for 4.12 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 02/39] rcu: Make arch select smp_mb__after_unlock_lock() strength "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
Re: [PATCH v2 tip/core/rcu 02/39] rcu: Make arch select smp_mb__after_unlock_lock() strength Josh Triplett <josh@joshtriplett.org> - 2017-04-18 02:20 +0200
[PATCH v2 tip/core/rcu 10/39] rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 24/39] srcu: Move combining-tree definitions for SRCU's benefit "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 31/39] srcu: Allow a second bit in rcu_seq for SRCU state "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 15/39] srcu: Allow early boot use of synchronize_srcu() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 14/39] srcu: Allow SRCU to access rcu_scheduler_active "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 05/39] rcu: Semicolon inside RCU_TRACE() for rcu.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 33/39] srcu: Crude control of expedited grace periods "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 29/39] srcu: Fix bogus try_check_zero() comment "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 25/39] srcu: Move rcu_init_levelspread() to rcu_tree_node.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 27/39] srcu: Move rcu_node traversal macros to rcu.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 06/39] rcu: Semicolon inside RCU_TRACE() for Tiny RCU "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 39/39] rcu: Make non-preemptive schedule be Tasks RCU quiescent state "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 07/39] rcu: Semicolon inside RCU_TRACE() for tree.c "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 18/39] rcu: Expedited wakeups need to be fully ordered "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 21/39] srcu: Move to state-based grace-period sequencing "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 22/39] srcu: Add grace-period sequence numbers "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 34/39] mm: Use static initialization for "srcu" "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 35/39] srcu: Create a tiny SRCU "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 16/39] rcu: Add single-element dequeue functions to rcu_segcblist "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 01:50 +0200
[PATCH v2 tip/core/rcu 19/39] rcu: Fix warning in rcu_seq_end() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 03/39] srcu: Consolidate batch checking into rcu_all_batches_empty() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
Re: [PATCH v2 tip/core/rcu 03/39] srcu: Consolidate batch checking into rcu_all_batches_empty() Josh Triplett <josh@joshtriplett.org> - 2017-04-18 02:40 +0200
[PATCH v2 tip/core/rcu 08/39] rcu: Pull rcu_sched_qs_mask into rcu_dynticks structure "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 09/39] rcu: Pull rcu_qs_ctr into rcu_dynticks structure "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 30/39] srcu: Improve rcu_seq grace-period-counter abstraction "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 17/39] srcu: Move rcu_seq_start() and friends to rcu.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 11/39] rcu: Place guard on rcu_all_qs() and rcu_note_context_switch() actions "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 28/39] srcu: Make num_rcu_lvl[] array be external "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 26/39] rcu: Remove redundant levelcnt[] array from rcu_init_one() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 32/39] srcu: Merge ->srcu_state into ->srcu_gp_seq "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 36/39] srcutorture: Print Tiny SRCU reader statistics "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
[PATCH v2 tip/core/rcu 01/39] rcu: Maintain special bits at bottom of ->dynticks counter "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
Re: [PATCH v2 tip/core/rcu 01/39] rcu: Maintain special bits at bottom of ->dynticks counter Josh Triplett <josh@joshtriplett.org> - 2017-04-18 02:10 +0200
Re: [PATCH v2 tip/core/rcu 01/39] rcu: Maintain special bits at bottom of ->dynticks counter "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 20:30 +0200
[PATCH v2 tip/core/rcu 04/39] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 02:00 +0200
Re: [PATCH v2 tip/core/rcu 04/39] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() Josh Triplett <josh@joshtriplett.org> - 2017-04-18 02:40 +0200
Re: [PATCH v2 tip/core/rcu 04/39] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-18 20:40 +0200
Re: [PATCH v2 tip/core/rcu 04/39] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() Josh Triplett <josh@joshtriplett.org> - 2017-04-18 21:50 +0200
Re: [PATCH v2 tip/core/rcu 04/39] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() Josh Triplett <josh@joshtriplett.org> - 2017-04-18 02:40 +0200
[PATCH v3 tip/core/rcu 0/40] SRCU callback parallelization for 4.12 "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:00 +0200
[PATCH v3 tip/core/rcu 35/40] srcu: Create a tiny SRCU "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:00 +0200
[PATCH v3 tip/core/rcu 12/40] rcu: Default RCU_FANOUT_LEAF to 16 unless explicitly changed "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:00 +0200
[PATCH v3 tip/core/rcu 05/40] rcu: Semicolon inside RCU_TRACE() for rcu.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
Re: [PATCH v3 tip/core/rcu 05/40] rcu: Semicolon inside RCU_TRACE() for rcu.h Joe Perches <joe@perches.com> - 2017-04-19 19:50 +0200
[PATCH v3 tip/core/rcu 26/40] rcu: Remove redundant levelcnt[] array from rcu_init_one() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 14/40] srcu: Allow SRCU to access rcu_scheduler_active "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 27/40] srcu: Move rcu_node traversal macros to rcu.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 19/40] rcu: Fix warning in rcu_seq_end() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 29/40] srcu: Fix bogus try_check_zero() comment "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 28/40] srcu: Make num_rcu_lvl[] array be external "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 22/40] srcu: Add grace-period sequence numbers "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 39/40] srcu: Expedite srcu_schedule_cbs_snp() callback invocation "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 30/40] srcu: Improve rcu_seq grace-period-counter abstraction "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 01/40] rcu: Maintain special bits at bottom of ->dynticks counter "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 20/40] srcu: Push srcu_advance_batches() fastpath into common case "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 34/40] mm: Use static initialization for "srcu" "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 17/40] srcu: Move rcu_seq_start() and friends to rcu.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 08/40] rcu: Pull rcu_sched_qs_mask into rcu_dynticks structure "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 36/40] srcutorture: Print Tiny SRCU reader statistics "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 09/40] rcu: Pull rcu_qs_ctr into rcu_dynticks structure "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 04/40] srcu: Check for tardy grace-period activity in cleanup_srcu_struct() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 07/40] rcu: Semicolon inside RCU_TRACE() for tree.c "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 10/40] rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 02/40] rcu: Make arch select smp_mb__after_unlock_lock() strength "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 24/40] srcu: Move combining-tree definitions for SRCU's benefit "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 15/40] srcu: Allow early boot use of synchronize_srcu() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 33/40] srcu: Crude control of expedited grace periods "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 06/40] rcu: Semicolon inside RCU_TRACE() for Tiny RCU "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 03/40] srcu: Consolidate batch checking into rcu_all_batches_empty() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 32/40] srcu: Merge ->srcu_state into ->srcu_gp_seq "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
[PATCH v3 tip/core/rcu 25/40] srcu: Move rcu_init_levelspread() to rcu_tree_node.h "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-19 19:10 +0200
powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) Michael Ellerman <michaele@au1.ibm.com> - 2017-04-20 05:50 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-20 16:30 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) Paolo Bonzini <pbonzini@redhat.com> - 2017-04-20 17:30 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-21 02:40 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) Michael Ellerman <michaele@au1.ibm.com> - 2017-04-21 03:50 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-21 06:20 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) Paolo Bonzini <pbonzini@redhat.com> - 2017-04-21 09:30 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-04-21 15:00 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) Michael Ellerman <michaele@au1.ibm.com> - 2017-04-22 08:20 +0200
Re: powerpc KVM build break in linux-next (was Re: [PATCH tip/core/rcu 40/40] srcu: Parallelize callback handling) Michael Ellerman <michaele@au1.ibm.com> - 2017-04-21 04:20 +0200
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