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authorThomas Gleixner <tglx@linutronix.de>2016-01-14 16:54:47 +0000
committerThomas Gleixner <tglx@linutronix.de>2016-01-17 11:13:55 +0100
commit572c39172684c3711e4a03c9a7380067e2b0661c (patch)
tree32e8715a621ce7ff43c8b6365cc973694950ac0b /kernel/time
parentb62526ed11a1fe3861ab98d40b7fdab8981d788a (diff)
posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper
As Helge reported for timerfd we have the same issue in posix timers. We return remaining time larger than the programmed relative time to user space in case of CONFIG_TIME_LOW_RES=y. Use the proper function to adjust the extra time added in hrtimer_start_range_ns(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Helge Deller <deller@gmx.de> Cc: John Stultz <john.stultz@linaro.org> Cc: linux-m68k@lists.linux-m68k.org Cc: dhowells@redhat.com Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20160114164159.450510905@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/posix-timers.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 31d11ac9fa47..f2826c35e918 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -760,7 +760,7 @@ common_timer_get(struct k_itimer *timr, struct itimerspec *cur_setting)
(timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE))
timr->it_overrun += (unsigned int) hrtimer_forward(timer, now, iv);
- remaining = ktime_sub(hrtimer_get_expires(timer), now);
+ remaining = __hrtimer_expires_remaining_adjusted(timer, now);
/* Return 0 only, when the timer is expired and not pending */
if (remaining.tv64 <= 0) {
/*