[tip:timers/core] posix-timers: Add timer_rearm() callback

tip-bot for Thomas Gleixner
2017-06-05T08:21:50Z

Commit-ID: 30802945893bc944b5971b408b37511a03b54e5c
Gitweb: http://git.kernel.org/tip/30802945893bc944b5971b408b37511a03b54e5c
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Tue, 30 May 2017 23:15:45 +0200
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sun, 4 Jun 2017 15:40:25 +0200

posix-timers: Add timer_rearm() callback

Add a timer_rearm() callback which is used to make the rescheduling of
posix interval timers independent of the underlying clock implementation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/20170530211656.732632167@linutronix.de

---
kernel/time/posix-timers.h | 33 ++++++++++++++++++---------------
1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/kernel/time/posix-timers.h b/kernel/time/posix-timers.h
index ad2dbd2..02ffd1b 100644
--- a/kernel/time/posix-timers.h
+++ b/kernel/time/posix-timers.h
@@ -1,21 +1,24 @@
#define TIMER_RETRY 1

struct k_clock {
- int (*clock_getres) (const clockid_t which_clock, struct timespec64 *tp);
- int (*clock_set) (const clockid_t which_clock,
- const struct timespec64 *tp);
- int (*clock_get) (const clockid_t which_clock, struct timespec64 *tp);
- int (*clock_adj) (const clockid_t which_clock, struct timex *tx);
- int (*timer_create) (struct k_itimer *timer);
- int (*nsleep) (const clockid_t which_clock, int flags,
- struct timespec64 *, struct timespec __user *);
- long (*nsleep_restart) (struct restart_block *restart_block);
- int (*timer_set) (struct k_itimer *timr, int flags,
- struct itimerspec64 *new_setting,
- struct itimerspec64 *old_setting);
- int (*timer_del) (struct k_itimer *timr);
- void (*timer_get) (struct k_itimer *timr,
- struct itimerspec64 *cur_setting);
+ int (*clock_getres)(const clockid_t which_clock,
+ struct timespec64 *tp);
+ int (*clock_set)(const clockid_t which_clock,
+ const struct timespec64 *tp);
+ int (*clock_get)(const clockid_t which_clock,
+ struct timespec64 *tp);
+ int (*clock_adj)(const clockid_t which_clock, struct timex *tx);
+ int (*timer_create)(struct k_itimer *timer);
+ int (*nsleep)(const clockid_t which_clock, int flags,
+ struct timespec64 *, struct timespec __user *);
+ long (*nsleep_restart)(struct restart_block *restart_block);
+ int (*timer_set)(struct k_itimer *timr, int flags,
+ struct itimerspec64 *new_setting,
+ struct itimerspec64 *old_setting);
+ int (*timer_del)(struct k_itimer *timr);
+ void (*timer_get)(struct k_itimer *timr,
+ struct itimerspec64 *cur_setting);
+ void (*timer_rearm)(struct k_itimer *timr);
};

extern const struct k_clock clock_posix_cpu;