Commit-ID: 693a8b6eecce1a0cfe91a469e85c56016dc1cc53
Gitweb: http://git.kernel.org/tip/693a8b6eecce1a0cfe91a469e85c56016dc1cc53
Author: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
AuthorDate: Fri, 18 Mar 2011 12:09:35 +0800
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Wed, 20 Jul 2011 14:10:16 -0700
ipc,rcu: Convert call_rcu(free_un) to kfree_rcu()
The rcu callback free_un() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(free_un).
Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
ipc/sem.c | 10 ++--------
1 files changed, 2 insertions(+), 8 deletions(-)
diff --git a/ipc/sem.c b/ipc/sem.c
index 34193ed..8b929e6 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -689,12 +689,6 @@ static int count_semzcnt (struct sem_array * sma, ushort semnum)
return semzcnt;
}
-static void free_un(struct rcu_head *head)
-{
- struct sem_undo *un = container_of(head, struct sem_undo, rcu);
- kfree(un);
-}
-
/* Free a semaphore set. freeary() is called with sem_ids.rw_mutex locked
* as a writer and the spinlock for this semaphore set hold. sem_ids.rw_mutex
* remains locked on exit.
@@ -714,7 +708,7 @@ static void freeary(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
un->semid = -1;
list_del_rcu(&un->list_proc);
spin_unlock(&un->ulp->lock);
- call_rcu(&un->rcu, free_un);
+ kfree_rcu(un, rcu);
}
/* Wake up all pending processes and let them fail with EIDRM. */
@@ -1612,7 +1606,7 @@ void exit_sem(struct task_struct *tsk)
sem_unlock(sma);
wake_up_sem_queue_do(&tasks);
- call_rcu(&un->rcu, free_un);
+ kfree_rcu(un, rcu);
}
kfree(ulp);
}
--
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