Dear RT Folks, I'm pleased to announce the 3.10.44-rt46 stable release. You can get this release via the git tree at: git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git branch: v3.10-rt Head SHA1: 6cdb407a1ef32c5f757af68ea294505c6dd1ed4c Or to build 3.10.44-rt46 directly, the following patches should be applied: http://www.kernel.org/pub/linux/kernel/v3.x/linux-3.10.tar.xz http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.10.44.xz http://www.kernel.org/pub/linux/kernel/projects/rt/3.10/patch-3.10.44-rt46.patch.xz You can also build from 3.10.44-rt45 by applying the incremental patch: http://www.kernel.org/pub/linux/kernel/projects/rt/3.10/incr/patch-3.10.44-rt45-rt46.patch.xz Enjoy, -- Steve Changes from v3.10.44-rt45: --- Ben Hutchings (1): Fix latency histogram after "hrtimer: Set expiry time before switch_hrtimer_base()" Sebastian Andrzej Siewior (1): timer: do not spin_trylock() on UP Steven Rostedt (Red Hat) (1): Linux 3.10.44-rt46 ---- kernel/hrtimer.c | 10 +++++----- kernel/timer.c | 13 +++++++++++++ localversion-rt | 2 +- 3 files changed, 19 insertions(+), 6 deletions(-) --------------------------- diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index f7a3a7a5a61b..1defbda1def8 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -1102,6 +1102,11 @@ int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, #endif } + hrtimer_set_expires_range_ns(timer, tim, delta_ns); + + /* Switch the timer base, if necessary: */ + new_base = switch_hrtimer_base(timer, base, mode & HRTIMER_MODE_PINNED); + #ifdef CONFIG_MISSED_TIMER_OFFSETS_HIST { ktime_t now = new_base->get_time(); @@ -1113,11 +1118,6 @@ int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, } #endif - hrtimer_set_expires_range_ns(timer, tim, delta_ns); - - /* Switch the timer base, if necessary: */ - new_base = switch_hrtimer_base(timer, base, mode & HRTIMER_MODE_PINNED); - timer_stats_hrtimer_set_start_info(timer); leftmost = enqueue_hrtimer(timer, new_base); diff --git a/kernel/timer.c b/kernel/timer.c index 26cca8b924e7..40cfa14131ca 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1461,6 +1461,19 @@ void run_local_timers(void) * the timer softirq. */ #ifdef CONFIG_PREEMPT_RT_FULL + +#ifndef CONFIG_SMP + /* + * The spin_do_trylock() later may fail as the lock may be hold before + * the interrupt arrived. The spin-lock debugging code will raise a + * warning if the try_lock fails on UP. Since this is only an + * optimization for the FULL_NO_HZ case (not to run the timer softirq on + * an nohz_full CPU) we don't really care and shedule the softirq. + */ + raise_softirq(TIMER_SOFTIRQ); + return; +#endif + /* On RT, irq work runs from softirq */ if (irq_work_needs_cpu()) { raise_softirq(TIMER_SOFTIRQ); diff --git a/localversion-rt b/localversion-rt index 38c40b21a885..272158183778 100644 --- a/localversion-rt +++ b/localversion-rt @@ -1 +1 @@ --rt45 +-rt46 -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
