y2038: ipc: Use ktime_get_real_seconds consistently
In some places, we still used get_seconds() instead of
ktime_get_real_seconds(), and I'm changing the remaining ones now to
all use ktime_get_real_seconds() so we use the full available range for
timestamps instead of overflowing the 'unsigned long' return value in
year 2106 on 32-bit kernels.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/ipc/msg.c b/ipc/msg.c
index 56fd1c7..574f76c 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -758,7 +758,7 @@ static inline int pipelined_send(struct msg_queue *msq, struct msg_msg *msg,
WRITE_ONCE(msr->r_msg, ERR_PTR(-E2BIG));
} else {
ipc_update_pid(&msq->q_lrpid, task_pid(msr->r_tsk));
- msq->q_rtime = get_seconds();
+ msq->q_rtime = ktime_get_real_seconds();
wake_q_add(wake_q, msr->r_tsk);
WRITE_ONCE(msr->r_msg, msg);
@@ -859,7 +859,7 @@ static long do_msgsnd(int msqid, long mtype, void __user *mtext,
}
ipc_update_pid(&msq->q_lspid, task_tgid(current));
- msq->q_stime = get_seconds();
+ msq->q_stime = ktime_get_real_seconds();
if (!pipelined_send(msq, msg, &wake_q)) {
/* no one is waiting for this message, enqueue it */
@@ -1087,7 +1087,7 @@ static long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, in
list_del(&msg->m_list);
msq->q_qnum--;
- msq->q_rtime = get_seconds();
+ msq->q_rtime = ktime_get_real_seconds();
ipc_update_pid(&msq->q_lrpid, task_tgid(current));
msq->q_cbytes -= msg->m_ts;
atomic_sub(msg->m_ts, &ns->msg_bytes);