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authorThomas Gleixner <tglx@linutronix.de>2018-03-01 19:33:35 +0300
committerIngo Molnar <mingo@kernel.org>2018-03-13 09:34:22 +0300
commitd6c7270e913db75ca5fdc79915ba780e97ae2857 (patch)
tree51ea592b5ab0c4ef87fc1161ddc2c4a88339bf11 /include/linux/timekeeping.h
parentf2d6fdbfd2389a38598d448cb8dc09d946c1b87e (diff)
downloadlinux-d6c7270e913db75ca5fdc79915ba780e97ae2857.tar.xz
timekeeping: Remove boot time specific code
Now that the MONOTONIC and BOOTTIME clocks are the same, remove all the special handling from timekeeping. Keep wrappers for the existing users of the *boot* timekeeper interfaces. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kevin Easton <kevin@guarana.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Salyzyn <salyzyn@android.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20180301165150.236279497@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/timekeeping.h')
-rw-r--r--include/linux/timekeeping.h42
1 files changed, 17 insertions, 25 deletions
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 440b1935d3a5..abb396731332 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -38,15 +38,19 @@ extern int __getnstimeofday64(struct timespec64 *tv);
extern void getnstimeofday64(struct timespec64 *tv);
extern void getboottime64(struct timespec64 *ts);
-#define ktime_get_real_ts64(ts) getnstimeofday64(ts)
+#define ktime_get_real_ts64(ts) getnstimeofday64(ts)
+
+/* Clock BOOTTIME compatibility wrappers */
+static inline void get_monotonic_boottime64(struct timespec64 *ts)
+{
+ ktime_get_ts64(ts);
+}
/*
* ktime_t based interfaces
*/
-
enum tk_offsets {
TK_OFFS_REAL,
- TK_OFFS_BOOT,
TK_OFFS_TAI,
TK_OFFS_MAX,
};
@@ -57,6 +61,10 @@ extern ktime_t ktime_mono_to_any(ktime_t tmono, enum tk_offsets offs);
extern ktime_t ktime_get_raw(void);
extern u32 ktime_get_resolution_ns(void);
+/* Clock BOOTTIME compatibility wrappers */
+static inline ktime_t ktime_get_boottime(void) { return ktime_get(); }
+static inline u64 ktime_get_boot_ns(void) { return ktime_get(); }
+
/**
* ktime_get_real - get the real (wall-) time in ktime_t format
*/
@@ -66,17 +74,6 @@ static inline ktime_t ktime_get_real(void)
}
/**
- * ktime_get_boottime - Returns monotonic time since boot in ktime_t format
- *
- * This is similar to CLOCK_MONTONIC/ktime_get, but also includes the
- * time spent in suspend.
- */
-static inline ktime_t ktime_get_boottime(void)
-{
- return ktime_get_with_offset(TK_OFFS_BOOT);
-}
-
-/**
* ktime_get_clocktai - Returns the TAI time of day in ktime_t format
*/
static inline ktime_t ktime_get_clocktai(void)
@@ -102,11 +99,6 @@ static inline u64 ktime_get_real_ns(void)
return ktime_to_ns(ktime_get_real());
}
-static inline u64 ktime_get_boot_ns(void)
-{
- return ktime_to_ns(ktime_get_boottime());
-}
-
static inline u64 ktime_get_tai_ns(void)
{
return ktime_to_ns(ktime_get_clocktai());
@@ -119,17 +111,17 @@ static inline u64 ktime_get_raw_ns(void)
extern u64 ktime_get_mono_fast_ns(void);
extern u64 ktime_get_raw_fast_ns(void);
-extern u64 ktime_get_boot_fast_ns(void);
extern u64 ktime_get_real_fast_ns(void);
-/*
- * timespec64 interfaces utilizing the ktime based ones
- */
-static inline void get_monotonic_boottime64(struct timespec64 *ts)
+/* Clock BOOTTIME compatibility wrappers */
+static inline u64 ktime_get_boot_fast_ns(void)
{
- *ts = ktime_to_timespec64(ktime_get_boottime());
+ return ktime_get_mono_fast_ns();
}
+/*
+ * timespec64 interfaces utilizing the ktime based ones
+ */
static inline void timekeeping_clocktai64(struct timespec64 *ts)
{
*ts = ktime_to_timespec64(ktime_get_clocktai());