[PATCH v2 02/28] kernel: Add Monotonic boot time support

Vincenzo Frascino
2018-11-29T17:07:49Z

Currently, datapage.h has no support for CLOCK_BOOTTIME.
CLOCK_BOOTTIME is identical to CLOCK_MONOTONIC, but includes
any time spent in suspend.

This patch adds monotonic boot time support (btm_nsec) to datapage.h.

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
include/vdso/datapage.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/vdso/datapage.h b/include/vdso/datapage.h
index a02ca170d56e..52189c21d422 100644
--- a/include/vdso/datapage.h
+++ b/include/vdso/datapage.h
@@ -32,6 +32,7 @@ struct vdso_data {
__u64 xtime_coarse_nsec;
__u64 wtm_clock_sec; /* Wall to monotonic time */
__u64 wtm_clock_nsec;
+ __u64 btm_nsec; /* Monotonic to boot time */
__u32 tb_seq_count; /* Timebase sequence counter */
__u32 cs_mono_mult; /* NTP-adjusted clocksource multiplier */
__u32 cs_shift; /* Clocksource shift (mono = raw) */