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authorThomas Gleixner <tglx@linutronix.de>2017-05-31 00:15:38 +0300
committerThomas Gleixner <tglx@linutronix.de>2017-06-04 16:40:22 +0300
commit3a06c7ac24f9f24ec059cd77c2dbdf7fbfd0aaaf (patch)
tree840a255c75e7d5f400722236ff7ee4a13a73a779 /include/linux/posix-clock.h
parenta81129e5a189973abd661704b261f8aad9325407 (diff)
downloadlinux-3a06c7ac24f9f24ec059cd77c2dbdf7fbfd0aaaf.tar.xz
posix-clocks: Remove interval timer facility and mmap/fasync callbacks
The only user of this facility is ptp_clock, which does not implement any of those functions. Remove them to prevent accidental users. Especially the interval timer interfaces are now more or less impossible to implement because the necessary infrastructure has been confined to the core code. Aside of that it's really complex to make these callbacks implemented according to spec as the alarm timer implementation demonstrates. If at all then a nanosleep callback might be a reasonable extension. For now keep just what ptp_clock needs. 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/20170530211656.145036286@linutronix.de
Diffstat (limited to 'include/linux/posix-clock.h')
-rw-r--r--include/linux/posix-clock.h22
1 files changed, 0 insertions, 22 deletions
diff --git a/include/linux/posix-clock.h b/include/linux/posix-clock.h
index 83b22ae9ae12..38d8225510f1 100644
--- a/include/linux/posix-clock.h
+++ b/include/linux/posix-clock.h
@@ -42,12 +42,6 @@ struct posix_clock;
* @clock_gettime: Read the current time
* @clock_getres: Get the clock resolution
* @clock_settime: Set the current time value
- * @timer_create: Create a new timer
- * @timer_delete: Remove a previously created timer
- * @timer_gettime: Get remaining time and interval of a timer
- * @timer_settime: Set a timer's initial expiration and interval
- * @fasync: Optional character device fasync method
- * @mmap: Optional character device mmap method
* @open: Optional character device open method
* @release: Optional character device release method
* @ioctl: Optional character device ioctl method
@@ -66,28 +60,12 @@ struct posix_clock_operations {
int (*clock_settime)(struct posix_clock *pc,
const struct timespec64 *ts);
- int (*timer_create) (struct posix_clock *pc, struct k_itimer *kit);
-
- int (*timer_delete) (struct posix_clock *pc, struct k_itimer *kit);
-
- void (*timer_gettime)(struct posix_clock *pc,
- struct k_itimer *kit, struct itimerspec64 *tsp);
-
- int (*timer_settime)(struct posix_clock *pc,
- struct k_itimer *kit, int flags,
- struct itimerspec64 *tsp, struct itimerspec64 *old);
/*
* Optional character device methods:
*/
- int (*fasync) (struct posix_clock *pc,
- int fd, struct file *file, int on);
-
long (*ioctl) (struct posix_clock *pc,
unsigned int cmd, unsigned long arg);
- int (*mmap) (struct posix_clock *pc,
- struct vm_area_struct *vma);
-
int (*open) (struct posix_clock *pc, fmode_t f_mode);
uint (*poll) (struct posix_clock *pc,