Commit-ID: 8b094cd03b4a3793220d8d8d86a173bfea8c285b
Gitweb: http://git.kernel.org/tip/8b094cd03b4a3793220d8d8d86a173bfea8c285b
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Wed, 16 Jul 2014 21:04:02 +0000
Committer: John Stultz <john.stultz@xxxxxxxxxx>
CommitDate: Wed, 23 Jul 2014 10:17:54 -0700
time: Consolidate the time accessor prototypes
Right now we have time related prototypes in 3 different header
files. Move it to a single timekeeping header file and move the core
internal stuff into a core private header.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
include/linux/hrtimer.h | 11 -------
include/linux/ktime.h | 8 ++---
include/linux/time.h | 45 +++-----------------------
include/linux/timekeeping.h | 78 +++++++++++++++++++++++++++++++++++++++++++++
kernel/time/hrtimer.c | 2 ++
kernel/time/posix-timers.c | 2 ++
kernel/time/tick-internal.h | 2 ++
kernel/time/time.c | 1 +
kernel/time/timekeeping.h | 20 ++++++++++++
9 files changed, 111 insertions(+), 58 deletions(-)
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index adf5056..a036d05 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -326,17 +326,6 @@ static inline void timerfd_clock_was_set(void) { }
#endif
extern void hrtimers_resume(void);
-extern ktime_t ktime_get(void);
-extern ktime_t ktime_get_real(void);
-extern ktime_t ktime_get_boottime(void);
-extern ktime_t ktime_get_monotonic_offset(void);
-extern ktime_t ktime_get_clocktai(void);
-extern ktime_t ktime_get_update_offsets_tick(ktime_t *offs_real,
- ktime_t *offs_boot,
- ktime_t *offs_tai);
-extern ktime_t ktime_get_update_offsets_now(ktime_t *offs_real,
- ktime_t *offs_boot,
- ktime_t *offs_tai);
DECLARE_PER_CPU(struct tick_device, tick_cpu_device);
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index da6b680..c9d645a 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -250,12 +250,6 @@ static inline __must_check bool ktime_to_timespec64_cond(const ktime_t kt,
#define LOW_RES_NSEC TICK_NSEC
#define KTIME_LOW_RES (ktime_t){ .tv64 = LOW_RES_NSEC }
-/* Get the monotonic time in timespec format: */
-extern void ktime_get_ts(struct timespec *ts);
-
-/* Get the real (wall-) time in timespec format: */
-#define ktime_get_real_ts(ts) getnstimeofday(ts)
-
static inline ktime_t ns_to_ktime(u64 ns)
{
static const ktime_t ktime_zero = { .tv64 = 0 };
@@ -270,4 +264,6 @@ static inline ktime_t ms_to_ktime(u64 ms)
return ktime_add_ms(ktime_zero, ms);
}
+# include <linux/timekeeping.h>
+
#endif
diff --git a/include/linux/time.h b/include/linux/time.h
index 234feac..8c42cf8 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -99,25 +99,7 @@ static inline bool timespec_valid_strict(const struct timespec *ts)
return true;
}
-extern bool persistent_clock_exist;
-
-static inline bool has_persistent_clock(void)
-{
- return persistent_clock_exist;
-}
-
-extern void read_persistent_clock(struct timespec *ts);
-extern void read_boot_clock(struct timespec *ts);
-extern int persistent_clock_is_local;
-extern int update_persistent_clock(struct timespec now);
-void timekeeping_init(void);
-extern int timekeeping_suspended;
-
-unsigned long get_seconds(void);
-struct timespec current_kernel_time(void);
-struct timespec __current_kernel_time(void); /* does not take xtime_lock */
-struct timespec get_monotonic_coarse(void);
-void timekeeping_inject_sleeptime(struct timespec *delta);
+extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
#define CURRENT_TIME (current_kernel_time())
#define CURRENT_TIME_SEC ((struct timespec) { get_seconds(), 0 })
@@ -135,33 +117,14 @@ void timekeeping_inject_sleeptime(struct timespec *delta);
extern u32 (*arch_gettimeoffset)(void);
#endif
-extern void do_gettimeofday(struct timeval *tv);
-extern int do_settimeofday(const struct timespec *tv);
-extern int do_sys_settimeofday(const struct timespec *tv,
- const struct timezone *tz);
-#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
-extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);
struct itimerval;
extern int do_setitimer(int which, struct itimerval *value,
struct itimerval *ovalue);
-extern unsigned int alarm_setitimer(unsigned int seconds);
extern int do_getitimer(int which, struct itimerval *value);
-extern int __getnstimeofday(struct timespec *tv);
-extern void getnstimeofday(struct timespec *tv);
-extern void getrawmonotonic(struct timespec *ts);
-extern void getnstime_raw_and_real(struct timespec *ts_raw,
- struct timespec *ts_real);
-extern void getboottime(struct timespec *ts);
-extern void monotonic_to_bootbased(struct timespec *ts);
-extern void get_monotonic_boottime(struct timespec *ts);
-extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
-extern int timekeeping_valid_for_hres(void);
-extern u64 timekeeping_max_deferment(void);
-extern int timekeeping_inject_offset(struct timespec *ts);
-extern s32 timekeeping_get_tai_offset(void);
-extern void timekeeping_set_tai_offset(s32 tai_offset);
-extern void timekeeping_clocktai(struct timespec *ts);
+extern unsigned int alarm_setitimer(unsigned int seconds);
+
+extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);
struct tms;
extern void do_sys_times(struct tms *);
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
new file mode 100644
index 0000000..e81c35b
--- /dev/null
+++ b/include/linux/timekeeping.h
@@ -0,0 +1,78 @@
+#ifndef _LINUX_TIMEKEEPING_H
+#define _LINUX_TIMEKEEPING_H
+
+/* Included from linux/ktime.h */
+
+void timekeeping_init(void);
+extern int timekeeping_suspended;
+
+/*
+ * Get and set timeofday
+ */
+extern void do_gettimeofday(struct timeval *tv);
+extern int do_settimeofday(const struct timespec *tv);
+extern int do_sys_settimeofday(const struct timespec *tv,
+ const struct timezone *tz);
+
+/*
+ * Kernel time accessors
+ */
+unsigned long get_seconds(void);
+struct timespec current_kernel_time(void);
+/* does not take xtime_lock */
+struct timespec __current_kernel_time(void);
+
+/*
+ * timespec based interfaces
+ */
+struct timespec get_monotonic_coarse(void);
+extern void getrawmonotonic(struct timespec *ts);
+extern void monotonic_to_bootbased(struct timespec *ts);
+extern void get_monotonic_boottime(struct timespec *ts);
+extern void ktime_get_ts(struct timespec *ts);
+
+extern int __getnstimeofday(struct timespec *tv);
+extern void getnstimeofday(struct timespec *tv);
+extern void getboottime(struct timespec *ts);
+
+#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
+#define ktime_get_real_ts(ts) getnstimeofday(ts)
+
+
+/*
+ * ktime_t based interfaces
+ */
+extern ktime_t ktime_get(void);
+extern ktime_t ktime_get_real(void);
+extern ktime_t ktime_get_boottime(void);
+extern ktime_t ktime_get_monotonic_offset(void);
+extern ktime_t ktime_get_clocktai(void);
+
+/*
+ * RTC specific
+ */
+extern void timekeeping_inject_sleeptime(struct timespec *delta);
+
+/*
+ * PPS accessor
+ */
+extern void getnstime_raw_and_real(struct timespec *ts_raw,
+ struct timespec *ts_real);
+
+/*
+ * Persistent clock related interfaces
+ */
+extern bool persistent_clock_exist;
+extern int persistent_clock_is_local;
+
+static inline bool has_persistent_clock(void)
+{
+ return persistent_clock_exist;
+}
+
+extern void read_persistent_clock(struct timespec *ts);
+extern void read_boot_clock(struct timespec *ts);
+extern int update_persistent_clock(struct timespec now);
+
+
+#endif
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 64843a8..1c2fe7d 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -54,6 +54,8 @@
#include <trace/events/timer.h>
+#include "timekeeping.h"
+
/*
* The timer bases:
*
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 424c2d4..42b463a 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -49,6 +49,8 @@
#include <linux/export.h>
#include <linux/hashtable.h>
+#include "timekeeping.h"
+
/*
* Management arrays for POSIX timers. Timers are now kept in static hash table
* with 512 entries.
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h
index 7ab92b1..c19c1d8 100644
--- a/kernel/time/tick-internal.h
+++ b/kernel/time/tick-internal.h
@@ -4,6 +4,8 @@
#include <linux/hrtimer.h>
#include <linux/tick.h>
+#include "timekeeping.h"
+
extern seqlock_t jiffies_lock;
#define CS_NAME_LEN 32
diff --git a/kernel/time/time.c b/kernel/time/time.c
index e8121a6..278c63c 100644
--- a/kernel/time/time.c
+++ b/kernel/time/time.c
@@ -42,6 +42,7 @@
#include <asm/unistd.h>
#include "timeconst.h"
+#include "timekeeping.h"
/*
* The timezone where the local system is located. Used as a default by some
diff --git a/kernel/time/timekeeping.h b/kernel/time/timekeeping.h
new file mode 100644
index 0000000..adc1fc9
--- /dev/null
+++ b/kernel/time/timekeeping.h
@@ -0,0 +1,20 @@
+#ifndef _KERNEL_TIME_TIMEKEEPING_H
+#define _KERNEL_TIME_TIMEKEEPING_H
+/*
+ * Internal interfaces for kernel/time/
+ */
+extern ktime_t ktime_get_update_offsets_tick(ktime_t *offs_real,
+ ktime_t *offs_boot,
+ ktime_t *offs_tai);
+extern ktime_t ktime_get_update_offsets_now(ktime_t *offs_real,
+ ktime_t *offs_boot,
+ ktime_t *offs_tai);
+
+extern int timekeeping_valid_for_hres(void);
+extern u64 timekeeping_max_deferment(void);
+extern int timekeeping_inject_offset(struct timespec *ts);
+extern s32 timekeeping_get_tai_offset(void);
+extern void timekeeping_set_tai_offset(s32 tai_offset);
+extern void timekeeping_clocktai(struct timespec *ts);
+
+#endif
--
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