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authorLai Jiangshan <laijs@cn.fujitsu.com>2011-03-18 04:09:35 (GMT)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-07-20 21:10:16 (GMT)
commit693a8b6eecce1a0cfe91a469e85c56016dc1cc53 (patch)
treeeb96b13432d0e8933b71ed84f5bd5ee4df6a5687 /ipc
parent449a68cc656fddeda448e324c57062a19cf451b9 (diff)
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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@cn.fujitsu.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Manfred Spraul <manfred@colorfullife.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'ipc')
-rw-r--r--ipc/sem.c10
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);
}