In case there is no connection to the server, notify the kernel
that the clock is currently unsynchronized.
Signed-off-by: Ville Heikkinen <ville.heikki...@nokia.com>
---
clockadj.c | 11 +++++++++++
clockadj.h | 5 +++++
phc2sys.c | 4 +++-
3 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/clockadj.c b/clockadj.c
index 0485d8c..7b8feef 100644
--- a/clockadj.c
+++ b/clockadj.c
@@ -182,3 +182,14 @@ void sysclk_set_sync(void)
if (clock_adjtime(clkid, &tx) < 0)
pr_err("failed to set clock status and maximum error: %m");
}
+
+void sysclk_set_unsync(void)
+{
+ clockid_t clkid = CLOCK_REALTIME;
+ struct timex tx;
+ memset(&tx, 0, sizeof(tx));
+ tx.modes = ADJ_STATUS;
+ tx.status = STA_UNSYNC;
+ if (clock_adjtime(clkid, &tx) < 0)
+ pr_err("failed to set clock status: %m");
+}
diff --git a/clockadj.h b/clockadj.h
index 4ea98c1..8a98627 100644
--- a/clockadj.h
+++ b/clockadj.h
@@ -80,4 +80,9 @@ int sysclk_max_freq(void);
* the real-time clock (RTC) to it.
*/
void sysclk_set_sync(void);
+
+/**
+ * Mark the system clock as unsynchronized.
+ */
+void sysclk_set_unsync(void);
#endif
diff --git a/phc2sys.c b/phc2sys.c
index c0b7b3d..80d0b8e 100644
--- a/phc2sys.c
+++ b/phc2sys.c
@@ -735,8 +735,10 @@ static int do_loop(struct node *node, int subscriptions)
reconfigure(node);
}
}
- if (!node->master)
+ if (!node->master) {
+ sysclk_set_unsync();
continue;
+ }
LIST_FOREACH(clock, &node->dst_clocks, dst_list) {
if (!update_needed(clock))
--
2.17.1
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