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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>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Lai Jiangshan 2011-03-18 12:11:44 +08:00 committed by Paul E. McKenney
parent 693a8b6eec
commit d4ee9aa33d
1 changed files with 1 additions and 15 deletions
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16
ipc/util.c
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@ -579,19 +579,6 @@ 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)
@ -601,8 +588,7 @@ 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);
}
}