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| author |   Andrei Vagin <avagin@gmail.com> | 2019-11-12 01:27:16 +0000 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2020-01-14 12:20:59 +0100 |
| commit | 04a8682a71becdb639ec9c0d82b315a2baef7a5d (patch) | |
| tree | 5aed3bbe75988c14609c60129d3d7efda79f07fe /include/linux/time_namespace.h | |
| parent | x86/vdso: Zap vvar pages when switching to a time namespace (diff) | |
| download | wireguard-linux-04a8682a71becdb639ec9c0d82b315a2baef7a5d.tar.xz wireguard-linux-04a8682a71becdb639ec9c0d82b315a2baef7a5d.zip | |
fs/proc: Introduce /proc/pid/timens_offsets
API to set time namespace offsets for children processes, i.e.:
echo "$clockid $offset_sec $offset_nsec" > /proc/self/timens_offsets
Co-developed-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20191112012724.250792-28-dima@arista.com
Diffstat (limited to 'include/linux/time_namespace.h')
| -rw-r--r-- | include/linux/time_namespace.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/time_namespace.h b/include/linux/time_namespace.h index 04a2ba8b8a06..824d54e057eb 100644 --- a/include/linux/time_namespace.h +++ b/include/linux/time_namespace.h @@ -52,6 +52,16 @@ static inline void put_time_ns(struct time_namespace *ns) kref_put(&ns->kref, free_time_ns); } +void proc_timens_show_offsets(struct task_struct *p, struct seq_file *m); + +struct proc_timens_offset { + int clockid; + struct timespec64 val; +}; + +int proc_timens_set_offset(struct file *file, struct task_struct *p, + struct proc_timens_offset *offsets, int n); + static inline void timens_add_monotonic(struct timespec64 *ts) { struct timens_offsets *ns_offsets = ¤t->nsproxy->time_ns->offsets; |