Commit-ID: 4376030a54860dedab9d848dfa7cc700a6025c0b
Gitweb: http://git.kernel.org/tip/4376030a54860dedab9d848dfa7cc700a6025c0b
Author: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
AuthorDate: Sat, 17 Apr 2010 08:48:39 -0400
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Mon, 10 May 2010 16:53:55 -0700
rcu head introduce rcu head init on stack
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@xxxxxxxxxxxx>
CC: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
CC: David S. Miller <davem@xxxxxxxxxxxxx>
CC: akpm@xxxxxxxxxxxxxxxxxxxx
CC: mingo@xxxxxxx
CC: laijs@xxxxxxxxxxxxxx
CC: dipankar@xxxxxxxxxx
CC: josh@xxxxxxxxxxxxxxxx
CC: dvhltc@xxxxxxxxxx
CC: niv@xxxxxxxxxx
CC: tglx@xxxxxxxxxxxxx
CC: peterz@xxxxxxxxxxxxx
CC: rostedt@xxxxxxxxxxx
CC: Valdis.Kletnieks@xxxxxx
CC: dhowells@xxxxxxxxxx
CC: eric.dumazet@xxxxxxxxx
CC: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
include/linux/rcupdate.h | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 23be3a7..b653b4a 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -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;
--
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