ipc: simplify rcu_read_lock() in semctl_nolock()
This trivially combines two rcu_read_lock() calls in both sides of a
if-statement into one single one in front of the if-statement.
Split out as an independent cleanup from the previous commit.
Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/ipc/sem.c b/ipc/sem.c
index f2151ba..899b598 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -948,8 +948,8 @@
memset(&tbuf, 0, sizeof(tbuf));
+ rcu_read_lock();
if (cmd == SEM_STAT) {
- rcu_read_lock();
sma = sem_obtain_object(ns, semid);
if (IS_ERR(sma)) {
err = PTR_ERR(sma);
@@ -957,7 +957,6 @@
}
id = sma->sem_perm.id;
} else {
- rcu_read_lock();
sma = sem_obtain_object_check(ns, semid);
if (IS_ERR(sma)) {
err = PTR_ERR(sma);