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| author | Andrei Vagin <avagin@gmail.com> | 2019-11-12 01:27:05 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-01-14 12:20:55 +0100 |
| commit | ea2d1f7fce0f18b67f915c00c6a7a6860116bc92 (patch) | |
| tree | 811b9ff78e0e2863d1dca35bc9a8bab40c60e08b /tools/perf/examples | |
| parent | 0b9b9a3b162e85e620e3598f1badc45b8a177492 (diff) | |
| download | linux-ea2d1f7fce0f18b67f915c00c6a7a6860116bc92.tar.gz | |
hrtimers: Prepare hrtimer_nanosleep() for time namespaces
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. There is timens_ktime_to_host() helper for converting time, but it accepts ktime argument. As a preparation, make hrtimer_nanosleep() accept a clock value in ktime instead of timespec64. 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/20191112012724.250792-17-dima@arista.com
Diffstat (limited to 'tools/perf/examples')
| -rw-r--r-- | tools/perf/examples/bpf/5sec.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/examples/bpf/5sec.c b/tools/perf/examples/bpf/5sec.c index b9c203219691..e6b6181c6dc6 100644 --- a/tools/perf/examples/bpf/5sec.c +++ b/tools/perf/examples/bpf/5sec.c @@ -41,9 +41,11 @@ #include <bpf.h> -int probe(hrtimer_nanosleep, rqtp->tv_sec)(void *ctx, int err, long sec) +#define NSEC_PER_SEC 1000000000L + +int probe(hrtimer_nanosleep, rqtp)(void *ctx, int err, long long sec) { - return sec == 5; + return sec / NSEC_PER_SEC == 5ULL; } license(GPL); |