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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2009-09-13 20:15:11 +0400
committerIngo Molnar <mingo@elte.hu>2009-09-18 02:06:53 +0400
commit16e3081191837a6a04733de5cd5d1d1b303140d4 (patch)
tree6b64a4613b9ac57da30518626a259b6aeeef4944 /include/linux/rcutree.h
parentc3422bea5f09b0e85704f51f2b01271630b8940b (diff)
downloadlinux-16e3081191837a6a04733de5cd5d1d1b303140d4.tar.xz
rcu: Fix synchronize_rcu() for TREE_PREEMPT_RCU
The redirection of synchronize_sched() to synchronize_rcu() was appropriate for TREE_RCU, but not for TREE_PREEMPT_RCU. Fix this by creating an underlying synchronize_sched(). TREE_RCU then redirects synchronize_rcu() to synchronize_sched(), while TREE_PREEMPT_RCU has its own version of synchronize_rcu(). Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: akpm@linux-foundation.org Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu LKML-Reference: <12528585111916-git-send-email-> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/rcutree.h')
-rw-r--r--include/linux/rcutree.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index a89307717825..00d08c0cbcc1 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -53,6 +53,8 @@ static inline void __rcu_read_unlock(void)
preempt_enable();
}
+#define __synchronize_sched() synchronize_rcu()
+
static inline void exit_rcu(void)
{
}
@@ -68,8 +70,6 @@ static inline void __rcu_read_unlock_bh(void)
local_bh_enable();
}
-#define __synchronize_sched() synchronize_rcu()
-
extern void call_rcu_sched(struct rcu_head *head,
void (*func)(struct rcu_head *rcu));