From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: akpm@linux-foundation.org, Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, paulmck@linux.vnet.ibm.com,
laijs@cn.fujitsu.com, dipankar@in.ibm.com, josh@joshtriplett.org,
dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de,
peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu, dhowells@redhat.com,
eric.dumazet@gmail.com, adobriyan@gmail.com,
"David S. Miller" <davem@davemloft.net>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: [patch 2/5] rcu head introduce rcu head init on stack
Date: Mon, 29 Mar 2010 10:34:07 -0400 [thread overview]
Message-ID: <20100329143702.016858955@efficios.com> (raw)
In-Reply-To: 20100329143405.252313609@efficios.com
[-- Attachment #1: rcu-head-introduce-rcu-head-init.patch --]
[-- Type: text/plain, Size: 1680 bytes --]
PEM:
o Would it be possible to make this bisectable as follows?
a. Insert a new patch after current patch 4/6 that
defines destroy_rcu_head_on_stack(),
init_rcu_head_on_stack(), and init_rcu_head() with
their !CONFIG_DEBUG_OBJECTS_RCU_HEAD definitions.
This patch performs this transition.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
CC: David S. Miller <davem@davemloft.net>
CC: akpm@linux-foundation.org
CC: mingo@elte.hu
CC: laijs@cn.fujitsu.com
CC: dipankar@in.ibm.com
CC: josh@joshtriplett.org
CC: dvhltc@us.ibm.com
CC: niv@us.ibm.com
CC: tglx@linutronix.de
CC: peterz@infradead.org
CC: rostedt@goodmis.org
CC: Valdis.Kletnieks@vt.edu
CC: dhowells@redhat.com
CC: eric.dumazet@gmail.com
CC: Alexey Dobriyan <adobriyan@gmail.com>
---
include/linux/rcupdate.h | 8 ++++++++
1 file changed, 8 insertions(+)
Index: linux.trees.git/include/linux/rcupdate.h
===================================================================
--- linux.trees.git.orig/include/linux/rcupdate.h 2010-03-29 09:43:35.000000000 -0400
+++ linux.trees.git/include/linux/rcupdate.h 2010-03-29 09:57:09.000000000 -0400
@@ -83,6 +83,14 @@ extern void rcu_scheduler_starting(void)
(ptr)->next = NULL; (ptr)->func = NULL; \
} while (0)
+static inline void init_rcu_head_on_stack(struct rcu_head *head)
+{
+}
+
+static inline void destroy_rcu_head_on_stack(struct rcu_head *head)
+{
+}
+
#ifdef CONFIG_DEBUG_LOCK_ALLOC
extern struct lockdep_map rcu_lock_map;
--
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
next prev parent reply other threads:[~2010-03-29 14:39 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-29 14:34 [patch 0/5] RCU head debug (v5) Mathieu Desnoyers
2010-03-29 14:34 ` [patch 1/5] Debugobjects transition check Mathieu Desnoyers
2010-03-30 16:21 ` Thomas Gleixner
2010-03-31 13:31 ` Mathieu Desnoyers
2010-03-31 13:51 ` Thomas Gleixner
2010-03-31 14:27 ` Mathieu Desnoyers
2010-04-06 8:15 ` Thomas Gleixner
2010-04-06 12:53 ` [patch 1/5] Debugobjects transition check (updated changelog) Mathieu Desnoyers
2010-04-15 18:32 ` Thomas Gleixner
2010-04-15 18:37 ` Paul E. McKenney
2010-03-29 14:34 ` Mathieu Desnoyers [this message]
2010-03-29 14:34 ` [patch 3/5] remove all rcu head initializations, except on_stack initializations Mathieu Desnoyers
2010-03-29 14:34 ` [patch 4/5] rcu head remove init Mathieu Desnoyers
2010-03-29 14:34 ` [patch 5/5] tree/tiny rcu: Add debug RCU head objects (v5) Mathieu Desnoyers
2010-03-29 15:14 ` [PATCH] rcu head debug consider on stack fixup Mathieu Desnoyers
2010-04-17 12:48 [patch 0/5] rcu head debugobjects Mathieu Desnoyers
2010-04-17 12:48 ` [patch 2/5] rcu head introduce rcu head init on stack Mathieu Desnoyers
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