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 15/24] rcutorture: Remove redundant initialization to zero
Date: Tue, 12 Apr 2016 08:43:48 -0700 [thread overview]
Message-ID: <1460475837-26498-15-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160412154332.GA24983@linux.vnet.ibm.com>
The current code initializes the global per-CPU variables
rcu_torture_count and rcu_torture_batch to zero. However, C does this
initialization by default, and explicit initialization of per-CPU
variables now needs a different syntax if "make tags" is to work.
This commit therefore removes the initialization.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
kernel/rcu/rcutorture.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 9234e75b106a..52b49fe90919 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -130,8 +130,8 @@ static struct rcu_torture __rcu *rcu_torture_current;
static unsigned long rcu_torture_current_version;
static struct rcu_torture rcu_tortures[10 * RCU_TORTURE_PIPE_LEN];
static DEFINE_SPINLOCK(rcu_torture_lock);
-static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) = { 0 };
-static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) = { 0 };
+static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count);
+static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch);
static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
static atomic_t n_rcu_torture_alloc;
static atomic_t n_rcu_torture_alloc_fail;
--
2.5.2
next prev parent reply other threads:[~2016-04-12 15:45 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-12 15:43 [PATCH tip/core/rcu 0/24] Torture-test changes for 4.7 Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 01/24] rcutorture: Update scripting to accommodate rcuperf Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 02/24] rcutorture: Allow for rcupdate.rcu_normal Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 03/24] rcutorture: Expedited-GP batch progress access to torturing Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 04/24] rcutorture: Add RCU grace-period performance tests Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 05/24] rcutorture: Documentation for rcuperf kernel parameters Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 06/24] rcutorture: Bind rcuperf reader/writer kthreads to CPUs Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 07/24] rcutorture: Set rcuperf writer kthreads to real-time priority Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 08/24] rcutorture: Print measure of batching efficiency Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 09/24] rcutorture: Make rcuperf collect expedited event-trace data Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 10/24] rcutorture: Make scripts analyze rcuperf trace data, if present Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 11/24] rcutorture: Add rcuperf holdoff boot parameter to reduce interference Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 12/24] rcutorture: Avoid RCU CPU stall warning and RT throttling Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 13/24] rcutorture: Add largish-system rcuperf scenario Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 14/24] rcuperf: Do not wake up shutdown wait queue if "shutdown" is false Paul E. McKenney
2016-04-12 15:43 ` Paul E. McKenney [this message]
2016-04-12 15:43 ` [PATCH tip/core/rcu 16/24] rcutorture: Consider FROZEN hotplug notifier transitions Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 17/24] torture: Clarify refusal to run more than one torture test Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 18/24] torture: Kill qemu, not parent process Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 19/24] rcutorture: Convert test duration to seconds early Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 20/24] rcutorture: Add OS-jitter capability Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 21/24] rcutorture: Don't rebuild identical kernel Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 22/24] rcutorture: Dump trace buffer upon shutdown Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 23/24] rcutorture: Add irqs-disabled test for call_rcu() Paul E. McKenney
2016-04-12 15:43 ` [PATCH tip/core/rcu 24/24] rcutorture: Add boot-time adjustment of leaf fanout Paul E. McKenney
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