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Subject[PATCH 32/36] ipc,rcu: convert call_rcu(ipc_immediate_free) to kfree_rcu()


The rcu callback ipc_immediate_free() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(ipc_immediate_free).

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
ipc/util.c | 16 +---------------
1 files changed, 1 insertions(+), 15 deletions(-)

diff --git a/ipc/util.c b/ipc/util.c
index 69a0cc1..e6fb418 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -576,19 +576,6 @@ static void ipc_schedule_free(struct rcu_head *head)
schedule_work(&sched->work);
}

-/**
- * ipc_immediate_free - free ipc + rcu space
- * @head: RCU callback structure that contains pointer to be freed
- *
- * Free from the RCU callback context.
- */
-static void ipc_immediate_free(struct rcu_head *head)
-{
- struct ipc_rcu_grace *free =
- container_of(head, struct ipc_rcu_grace, rcu);
- kfree(free);
-}
-
void ipc_rcu_putref(void *ptr)
{
if (--container_of(ptr, struct ipc_rcu_hdr, data)->refcount > 0)
@@ -598,8 +585,7 @@ void ipc_rcu_putref(void *ptr)
call_rcu(&container_of(ptr, struct ipc_rcu_grace, data)->rcu,
ipc_schedule_free);
} else {
- call_rcu(&container_of(ptr, struct ipc_rcu_grace, data)->rcu,
- ipc_immediate_free);
+ kfree_rcu(container_of(ptr, struct ipc_rcu_grace, data), rcu);
}
}

--
1.7.4

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