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rcu head introduce rcu head init on stack

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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>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Mathieu Desnoyers 2010-04-17 08:48:39 -04:00 committed by Paul E. McKenney
parent a5d8e467f8
commit 4376030a54
1 changed files with 8 additions and 0 deletions
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8
include/linux/rcupdate.h
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@ -79,6 +79,14 @@ extern void rcu_init(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;