[PATCH v2 02/12] timekeeping: add API for getting timekeeping_suspended

[Will McVicker <willmcvicker@google.com>]

This allows modules to access the value of timekeeping_suspended without
giving them write access to the variable.

Signed-off-by: Will McVicker <willmcvicker@google.com>
---
 include/linux/timekeeping.h |  1 +
 kernel/time/timekeeping.c   | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 78a98bdff76d..cdc84421d77b 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -8,6 +8,7 @@
 /* Included from linux/ktime.h */
 
 void timekeeping_init(void);
+extern bool timekeeping_is_suspended(void);
 extern int timekeeping_suspended;
 
 /* Architecture timer tick functions: */
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index b348749a9fc6..27873c052e57 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -57,6 +57,17 @@ static struct timekeeper shadow_timekeeper;
 /* flag for if timekeeping is suspended */
 int __read_mostly timekeeping_suspended;
 
+/**
+ * timekeeping_is_suspended - query for timekeeping_suspended
+ *
+ * Returns the true/false based on the value of timekeeping_suspened.
+ */
+bool timekeeping_is_suspended(void)
+{
+	return timekeeping_suspended ? true : false;
+}
+EXPORT_SYMBOL_GPL(timekeeping_is_suspended);
+
 /**
  * struct tk_fast - NMI safe timekeeper
  * @seq:	Sequence counter for protecting updates. The lowest bit
-- 
2.33.0.685.g46640cef36-goog