From 0b9b9a3b162e85e620e3598f1badc45b8a177492 Mon Sep 17 00:00:00 2001
From: Andrei Vagin <avagin@gmail.com>
Date: Tue, 12 Nov 2019 01:27:04 +0000
Subject: [PATCH 15/34] alarmtimer: Make nanosleep() time namespace aware
Git-commit: 0b9b9a3b162e85e620e3598f1badc45b8a177492
Patch-mainline: v5.6-rc1
References: bsc#1164648,jsc#SLE-11493
clock_nanosleep() accepts absolute values of expiration time when the
TIMER_ABSTIME flag is set. This absolute value is inside the task's
time namespace and has to be converted to the host's time.
Co-developed-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20191112012724.250792-16-dima@arista.com
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
kernel/time/alarmtimer.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index 9a8e81bc4ec2..b51b36e533c4 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -839,6 +839,8 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags,
ktime_t now = alarm_bases[type].get_ktime();
exp = ktime_add_safe(now, exp);
+ } else {
+ exp = timens_ktime_to_host(which_clock, exp);
}
ret = alarmtimer_do_nsleep(&alarm, exp, type);
--
2.16.4