ipc,sem: fix semctl(..., GETZCNT)
[linux-3.10.git] / ipc / sem.c
index 899b598..04b264d 100644 (file)
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -815,6 +815,13 @@ static int count_semzcnt (struct sem_array * sma, ushort semnum)
        struct sem_queue * q;
 
        semzcnt = 0;
+       list_for_each_entry(q, &sma->sem_base[semnum].sem_pending, list) {
+               struct sembuf * sops = q->sops;
+               BUG_ON(sops->sem_num != semnum);
+               if ((sops->sem_op == 0) && !(sops->sem_flg & IPC_NOWAIT))
+                       semzcnt++;
+       }
+
        list_for_each_entry(q, &sma->sem_pending, list) {
                struct sembuf * sops = q->sops;
                int nsops = q->nsops;