lkml.org 
[lkml]   [2019]   [Jul]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCHv5 14/37] alarmtimer: Make nanosleep time namespace aware
    Date
    From: Andrei Vagin <avagin@gmail.com>

    clock_nanosleep() accepts absolute values of expiration time when
    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.

    Signed-off-by: Andrei Vagin <avagin@openvz.org>
    Co-developed-by: Dmitry Safonov <dima@arista.com>
    Signed-off-by: Dmitry Safonov <dima@arista.com>
    ---
    kernel/time/alarmtimer.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
    index b1e82bb6cc6b..f21c743f6ede 100644
    --- a/kernel/time/alarmtimer.c
    +++ b/kernel/time/alarmtimer.c
    @@ -825,6 +825,8 @@ 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);
    --
    2.22.0
    \
     
     \ /
      Last update: 2019-07-30 00:03    [W:4.147 / U:0.072 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site