github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-06 05:27:07 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper

Browse Source 
commit 51cbb5242a upstream.

As Helge reported for timerfd we have the same issue in itimers. 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
Link: http://lkml.kernel.org/r/20160114164159.528222587@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Gleixner 2016-01-14 16:54:48 +00:00 committed by Greg Kroah-Hartman
parent 1c94da3e74
commit 82e730baa9
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/time/itimer.c
View File

@ -26,7 +26,7 @@
*/
static struct timeval itimer_get_remtime(struct hrtimer *timer)
{
ktime_t rem = hrtimer_get_remaining(timer);
ktime_t rem = __hrtimer_get_remaining(timer, true);
/*
* Racy but safe: if the itimer expires after the above