Commit-ID: 1135633bddcf7a819a1490c18d04965c490bcc1e
Gitweb: http://git.kernel.org/tip/1135633bddcf7a819a1490c18d04965c490bcc1e
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Mon, 16 May 2011 02:44:06 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Thu, 26 May 2011 09:42:21 -0700
rcu: Remove old memory barriers from rcu_process_callbacks()
Second step of partitioning of commit e59fb3120b.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcutree.c | 14 --------------
1 files changed, 0 insertions(+), 14 deletions(-)
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 3731141..011bf6f 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1460,25 +1460,11 @@ __rcu_process_callbacks(struct rcu_state *rsp, struct rcu_data *rdp)
*/
static void rcu_process_callbacks(void)
{
- /*
- * Memory references from any prior RCU read-side critical sections
- * executed by the interrupted code must be seen before any RCU
- * grace-period manipulations below.
- */
- smp_mb(); /* See above block comment. */
-
__rcu_process_callbacks(&rcu_sched_state,
&__get_cpu_var(rcu_sched_data));
__rcu_process_callbacks(&rcu_bh_state, &__get_cpu_var(rcu_bh_data));
rcu_preempt_process_callbacks();
- /*
- * Memory references from any later RCU read-side critical sections
- * executed by the interrupted code must be seen after any RCU
- * grace-period manipulations above.
- */
- smp_mb(); /* See above block comment. */
-
/* If we are last CPU on way to dyntick-idle mode, accelerate it. */
rcu_needs_cpu_flush();
}
--
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