summaryrefslogtreecommitdiffstats
path: root/ipc
diff options
context:
space:
mode:
Diffstat (limited to 'ipc')
-rw-r--r--ipc/sem.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/ipc/sem.c b/ipc/sem.c
index a37aaeb..178f303 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -2123,9 +2123,11 @@ void exit_sem(struct task_struct *tsk)
ipc_assert_locked_object(&sma->sem_perm);
list_del(&un->list_id);
- spin_lock(&ulp->lock);
+ /* we are the last process using this ulp, acquiring ulp->lock
+ * isn't required. Besides that, we are also protected against
+ * IPC_RMID as we hold sma->sem_perm lock now
+ */
list_del_rcu(&un->list_proc);
- spin_unlock(&ulp->lock);
/* perform adjustments registered in un */
for (i = 0; i < sma->sem_nsems; i++) {
OpenPOWER on IntegriCloud