posix-clocks: Wire up clock_gettime() with timens offsets

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Adjust monotonic and boottime clocks with per-timens offsets.  As the
result a process inside time namespace will see timers and clocks corrected
to offsets that were set when the namespace was created

Note that applications usually go through vDSO to get time, which is not
yet adjusted. Further changes will complete time namespace virtualisation
with vDSO support.

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/20191112012724.250792-12-dima@arista.com

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Andrei Vagin 2019-11-12 01:27:00 +00:00 • committed by Thomas Gleixner

parent 198fa445d5

commit 5a590f35ad

3 changed files with 16 additions and 1 deletions

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9

kernel/time/alarmtimer.c

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3

kernel/time/posix-stubs.c

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5

kernel/time/posix-timers.c

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