[CRIU] [PATCH] zdtm: It's need to sleep between clock_gettime() in uptime_grow

[Victor konyashkin]

ping

On Mon, 2012-07-16 at 12:56 +0400, Andrey Vagin wrote:
> Acked-by: Andrey Vagin <avagin at openvz.org>
> 
> On Jun 28, 2012 4:04 PM, "vkonyashkin" <vkonyashkin at parallels.com>
> wrote:
>         Kernel can't suspend container by design if calls
>         clock_gettime()
>         in a loop, so we need to sleep between clock_gettime().
>         
>         Signed-off-by: Victor Konyashkin  <vkonyashkin at parallels.com>
>         ---
>          test/zdtm/live/static/uptime_grow.c |   11 ++++++++++-
>          1 files changed, 10 insertions(+), 1 deletions(-)
>         
>         diff --git a/test/zdtm/live/static/uptime_grow.c
>         b/test/zdtm/live/static/uptime_grow.c
>         index 1f3dba3..670c062 100644
>         --- a/test/zdtm/live/static/uptime_grow.c
>         +++ b/test/zdtm/live/static/uptime_grow.c
>         @@ -13,8 +13,11 @@ const char *test_author = "Evgeny Antysev
>         <eantyshev at parallels.com>";
>         
>          int main(int argc, char **argv)
>          {
>         -       struct timespec tm_old, tm;
>         +       struct timespec tm_old, tm, ts;
>                 double diff_nsec;
>         +       ts.tv_sec = 0;
>         +       ts.tv_nsec = 1000000;
>         +
>                 test_init(argc, argv);
>         
>                 if (clock_gettime(CLOCK_MONOTONIC, &tm_old)) {
>         @@ -36,6 +39,12 @@ int main(int argc, char **argv)
>                                 exit(1);
>                         }
>                         tm_old = tm;
>         +               /*
>         +               Kernel can't suspend container by design if
>         calls
>         +               clock_gettime() in a loop, so we need to sleep
>         +               between clock_gettime().
>         +               */
>         +               nanosleep(&ts, NULL);
>                 }
>                 pass();
>                 return 0;
>         --
>         1.5.2.2
>         
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