From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com,
bobby.prani@gmail.com,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 10/16] rcu: Shorten expedited_workdone* to exp_workdone*
Date: Tue, 12 Apr 2016 08:29:29 -0700 [thread overview]
Message-ID: <1460474975-24560-10-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160412152906.GA23395@linux.vnet.ibm.com>
Just a name change to save a few lines and a bit of typing.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
kernel/rcu/tree.c | 8 +++-----
kernel/rcu/tree.h | 6 +++---
kernel/rcu/tree_trace.c | 6 +++---
3 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 64c2e3288551..89f028767765 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3624,15 +3624,14 @@ static struct rcu_node *exp_funnel_lock(struct rcu_state *rsp, unsigned long s)
* can be inexact, as it is just promoting locality and is not
* strictly needed for correctness.
*/
- if (sync_exp_work_done(rsp, NULL, NULL, &rdp->expedited_workdone1, s))
+ if (sync_exp_work_done(rsp, NULL, NULL, &rdp->exp_workdone1, s))
return NULL;
mutex_lock(&rdp->exp_funnel_mutex);
trace_rcu_exp_funnel_lock(rsp->name, rdp->mynode->level + 1,
rdp->cpu, rdp->cpu, TPS("acq"));
rnp0 = rdp->mynode;
for (; rnp0 != NULL; rnp0 = rnp0->parent) {
- if (sync_exp_work_done(rsp, rnp1, rdp,
- &rdp->expedited_workdone2, s))
+ if (sync_exp_work_done(rsp, rnp1, rdp, &rdp->exp_workdone2, s))
return NULL;
mutex_lock(&rnp0->exp_funnel_mutex);
trace_rcu_exp_funnel_lock(rsp->name, rnp0->level,
@@ -3651,8 +3650,7 @@ static struct rcu_node *exp_funnel_lock(struct rcu_state *rsp, unsigned long s)
}
rnp1 = rnp0;
}
- if (sync_exp_work_done(rsp, rnp1, rdp,
- &rdp->expedited_workdone3, s))
+ if (sync_exp_work_done(rsp, rnp1, rdp, &rdp->exp_workdone3, s))
return NULL;
return rnp1;
}
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index ac9a7b0c36ae..6a8f09446924 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -388,9 +388,9 @@ struct rcu_data {
struct rcu_head oom_head;
#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
struct mutex exp_funnel_mutex;
- atomic_long_t expedited_workdone1; /* # done by others #1. */
- atomic_long_t expedited_workdone2; /* # done by others #2. */
- atomic_long_t expedited_workdone3; /* # done by others #3. */
+ atomic_long_t exp_workdone1; /* # done by others #1. */
+ atomic_long_t exp_workdone2; /* # done by others #2. */
+ atomic_long_t exp_workdone3; /* # done by others #3. */
/* 7) Callback offloading. */
#ifdef CONFIG_RCU_NOCB_CPU
diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
index d149c412a4e5..86782f9a4604 100644
--- a/kernel/rcu/tree_trace.c
+++ b/kernel/rcu/tree_trace.c
@@ -189,9 +189,9 @@ static int show_rcuexp(struct seq_file *m, void *v)
for_each_possible_cpu(cpu) {
rdp = per_cpu_ptr(rsp->rda, cpu);
- s1 += atomic_long_read(&rdp->expedited_workdone1);
- s2 += atomic_long_read(&rdp->expedited_workdone2);
- s3 += atomic_long_read(&rdp->expedited_workdone3);
+ s1 += atomic_long_read(&rdp->exp_workdone1);
+ s2 += atomic_long_read(&rdp->exp_workdone2);
+ s3 += atomic_long_read(&rdp->exp_workdone3);
}
seq_printf(m, "s=%lu wd1=%lu wd2=%lu wd3=%lu n=%lu enq=%d sc=%lu\n",
rsp->expedited_sequence, s1, s2, s3,
--
2.5.2
next prev parent reply other threads:[~2016-04-12 15:29 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-12 15:29 [PATCH tip/core/rcu 0/16] Expedited grace-period changes for 4.7 Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 01/16] rcu: Make expedited RCU-sched grace period immediately detect idle Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 02/16] rcu: Make expedited RCU-preempt stall warnings count accurately Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 03/16] rcu: Make cond_resched_rcu_qs() supply RCU-sched expedited QS Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 04/16] rcu: Fix synchronize_rcu_expedited() header comment Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 05/16] rcu: Add event tracing definitions for expedited grace periods Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 06/16] rcu: Add funnel-locking tracing " Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 07/16] rcu: Add expedited-grace-period event tracing Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 08/16] rcu: Remove expedited GP funnel-lock bypass Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 09/16] rcu: Force boolean subscript for expedited stall warnings Paul E. McKenney
2016-04-12 15:29 ` Paul E. McKenney [this message]
2016-04-12 15:29 ` [PATCH tip/core/rcu 11/16] rcu: Enforce expedited-GP fairness via funnel wait queue Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 12/16] rcu: Add exp_funnel_lock() fastpath Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 13/16] rcu: Consolidate expedited GP code into rcu_exp_wait_wake() Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 14/16] rcu: Consolidate expedited GP tracing into rcu_exp_gp_seq_snap() Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 15/16] rcu: Consolidate expedited GP code into exp_funnel_lock() Paul E. McKenney
2016-04-12 15:29 ` [PATCH tip/core/rcu 16/16] rcu: Overlap wakeups with next expedited grace period Paul E. McKenney
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