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From: David Rientjes <rientjes@google.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com,
	peterz@infradead.org, tglx@linutronix.de, rientjes@google.com,
	mingo@elte.hu
Subject: [tip:core/locking] lockdep: initialize lockdep debugging statistics
Date: Thu, 5 Mar 2009 10:48:32 GMT	[thread overview]
Message-ID: <tip-742bbc4022d117bccf9c8a86c8e500dfa97e2f70@git.kernel.org> (raw)
In-Reply-To: <alpine.DEB.2.00.0903050223240.30401@chino.kir.corp.google.com>

Commit-ID:  742bbc4022d117bccf9c8a86c8e500dfa97e2f70
Gitweb:     http://git.kernel.org/tip/742bbc4022d117bccf9c8a86c8e500dfa97e2f70
Author:     "David Rientjes" <rientjes@google.com>
AuthorDate: Thu, 5 Mar 2009 02:29:06 -0800
Commit:     Ingo Molnar <mingo@elte.hu>
CommitDate: Thu, 5 Mar 2009 11:46:00 +0100

lockdep: initialize lockdep debugging statistics

Impact: cleanup

The CONFIG_DEBUG_LOCKDEP statistics need to be initialized with
ATOMIC_INIT(0) since they are of type atomic_t.

Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <alpine.DEB.2.00.0903050223240.30401@chino.kir.corp.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 kernel/lockdep.c |   34 +++++++++++++++++-----------------
 1 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 9a1e2bc..3f7ff12 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -416,23 +416,23 @@ static struct stack_trace lockdep_init_trace = {
 /*
  * Various lockdep statistics:
  */
-atomic_t chain_lookup_hits;
-atomic_t chain_lookup_misses;
-atomic_t hardirqs_on_events;
-atomic_t hardirqs_off_events;
-atomic_t redundant_hardirqs_on;
-atomic_t redundant_hardirqs_off;
-atomic_t softirqs_on_events;
-atomic_t softirqs_off_events;
-atomic_t redundant_softirqs_on;
-atomic_t redundant_softirqs_off;
-atomic_t nr_unused_locks;
-atomic_t nr_cyclic_checks;
-atomic_t nr_cyclic_check_recursions;
-atomic_t nr_find_usage_forwards_checks;
-atomic_t nr_find_usage_forwards_recursions;
-atomic_t nr_find_usage_backwards_checks;
-atomic_t nr_find_usage_backwards_recursions;
+atomic_t chain_lookup_hits = ATOMIC_INIT(0);
+atomic_t chain_lookup_misses = ATOMIC_INIT(0);
+atomic_t hardirqs_on_events = ATOMIC_INIT(0);
+atomic_t hardirqs_off_events = ATOMIC_INIT(0);
+atomic_t redundant_hardirqs_on = ATOMIC_INIT(0);
+atomic_t redundant_hardirqs_off = ATOMIC_INIT(0);
+atomic_t softirqs_on_events = ATOMIC_INIT(0);
+atomic_t softirqs_off_events = ATOMIC_INIT(0);
+atomic_t redundant_softirqs_on = ATOMIC_INIT(0);
+atomic_t redundant_softirqs_off = ATOMIC_INIT(0);
+atomic_t nr_unused_locks = ATOMIC_INIT(0);
+atomic_t nr_cyclic_checks = ATOMIC_INIT(0);
+atomic_t nr_cyclic_check_recursions = ATOMIC_INIT(0);
+atomic_t nr_find_usage_forwards_checks = ATOMIC_INIT(0);
+atomic_t nr_find_usage_forwards_recursions = ATOMIC_INIT(0);
+atomic_t nr_find_usage_backwards_checks = ATOMIC_INIT(0);
+atomic_t nr_find_usage_backwards_recursions = ATOMIC_INIT(0);
 #endif
 
 /*

  reply	other threads:[~2009-03-05 10:49 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-05 10:29 [patch 1/2] lockdep: remove duplicate CONFIG_DEBUG_LOCKDEP definitions David Rientjes
2009-03-05 10:29 ` [patch 2/2] lockdep: initialize lockdep debugging statistics David Rientjes
2009-03-05 10:48   ` David Rientjes [this message]
2009-03-05 10:49   ` Peter Zijlstra
2009-03-05 11:05     ` Ingo Molnar
2009-03-05 21:57       ` David Rientjes
2009-03-06  8:28         ` Peter Zijlstra
2009-03-06  9:56           ` David Rientjes
2009-03-06 10:19             ` Peter Zijlstra
2009-03-06 10:27               ` David Rientjes
2009-03-06 10:46                 ` Peter Zijlstra
2009-03-06 10:05           ` Li Zefan
2009-03-05 10:48 ` [tip:core/locking] lockdep: remove duplicate CONFIG_DEBUG_LOCKDEP definitions David Rientjes

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