This further unifies the accessors for the fast and coarse functions, so
that the same types of functions are available for each. There was also
a bit of confusion with the documentation, which prior advertised a
function that has never existed. Finally, the vanilla ktime_get_coarse()
was omitted from the API originally, so this fills this oversight.
Signed-off-by: Jason A. Donenfeld <ja...@zx2c4.com>
Cc: Arnd Bergmann <a...@arndb.de>
Cc: Thomas Gleixner <t...@linutronix.de>
---
Documentation/core-api/timekeeping.rst | 10 +++++++---
include/linux/timekeeping.h | 27 ++++++++++++++++++++++++++
2 files changed, 34 insertions(+), 3 deletions(-)
diff --git a/Documentation/core-api/timekeeping.rst
b/Documentation/core-api/timekeeping.rst
index 47b41e948459..0d4019fcaa87 100644
--- a/Documentation/core-api/timekeeping.rst
+++ b/Documentation/core-api/timekeeping.rst
@@ -99,16 +99,20 @@ Coarse and fast access
Some additional variants exist for more specialized cases:
-.. c:function:: ktime_t ktime_get_coarse_boottime( void )
+.. c:function:: ktime_t ktime_get_coarse( void )
+ ktime_t ktime_get_coarse_boottime( void )
ktime_t ktime_get_coarse_real( void )
ktime_t ktime_get_coarse_clocktai( void )
- ktime_t ktime_get_coarse_raw( void )
+
+.. c:function:: u64 ktime_get_coarse_ns( void )
+ u64 ktime_get_boot_coarse_ns( void )
+ u64 ktime_get_real_coarse_ns( void )
+ u64 ktime_get_tai_coarse_ns( void )
.. c:function:: void ktime_get_coarse_ts64( struct timespec64 * )
void ktime_get_coarse_boottime_ts64( struct timespec64 * )
void ktime_get_coarse_real_ts64( struct timespec64 * )
void ktime_get_coarse_clocktai_ts64( struct timespec64 * )
- void ktime_get_coarse_raw_ts64( struct timespec64 * )
These are quicker than the non-coarse versions, but less accurate,
corresponding to CLOCK_MONONOTNIC_COARSE and CLOCK_REALTIME_COARSE
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index c5d360779fab..3df8e63c704b 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -113,6 +113,33 @@ static inline ktime_t ktime_get_coarse_clocktai(void)
return ktime_get_coarse_with_offset(TK_OFFS_TAI);
}
+static inline ktime_t ktime_get_coarse(void)
+{
+ struct timespec64 ts;
+ ktime_get_coarse_ts64(&ts);
+ return timespec64_to_ktime(ts);
+}
+
+static inline u64 ktime_get_coarse_ns(void)
+{
+ return ktime_to_ns(ktime_get_coarse());
+}
+
+static inline u64 ktime_get_real_coarse_ns(void)
+{
+ return ktime_to_ns(ktime_get_coarse_real());
+}
+
+static inline u64 ktime_get_boot_coarse_ns(void)
+{
+ return ktime_to_ns(ktime_get_coarse_boottime());
+}
+
+static inline u64 ktime_get_tai_coarse_ns(void)
+{
+ return ktime_to_ns(ktime_get_coarse_clocktai());
+}
+
/**
* ktime_mono_to_real - Convert monotonic time to clock realtime
*/
--
2.21.0
