rculist: use list_entry_rcu in places where it's appropriate

Use previously introduced list_entry_rcu instead of an open-coded
list_entry + rcu_dereference combination.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: dipankar@in.ibm.com
LKML-Reference: <20090414181715.GA3634@psychotron.englab.brq.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 2 deletions

diff --git a/ipc/sem.c b/ipc/sem.c
index 16a2189e96f..87c2b641fd7 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1290,8 +1290,8 @@ void exit_sem(struct task_struct *tsk)
                 int i;
 
                 rcu_read_lock();
-                un = list_entry(rcu_dereference(ulp->list_proc.next),
-                                        struct sem_undo, list_proc);
+                un = list_entry_rcu(ulp->list_proc.next,
+                                    struct sem_undo, list_proc);
                 if (&un->list_proc == &ulp->list_proc)
                         semid = -1;
                  else