The patch titled
hrtimer: Fix status check
has been added to the -mm tree. Its filename is
highres-timer-core-fix-status-check.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: hrtimer: Fix status check
From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
When the callback function is running, the timer is neither queued in the
rbtree nor in the callback pending list. Check for timer queued instead of
timer active, otherwise rb_erase is called with a NULL pointer.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
kernel/hrtimer.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletion(-)
diff -puN kernel/hrtimer.c~highres-timer-core-fix-status-check kernel/hrtimer.c
--- a/kernel/hrtimer.c~highres-timer-core-fix-status-check
+++ a/kernel/hrtimer.c
@@ -966,6 +966,12 @@ static inline void hrtimer_resume_jiffy_
#endif /* CONFIG_HIGH_RES_TIMERS */
+static inline int hrtimer_is_queued(struct hrtimer *timer)
+{
+ return timer->state != HRTIMER_STATE_INACTIVE &&
+ timer->state != HRTIMER_STATE_CALLBACK;
+}
+
#ifdef CONFIG_TIMER_STATS
void __timer_stats_hrtimer_set_start_info(struct hrtimer *timer, void *addr)
{
@@ -1135,7 +1141,7 @@ static void __remove_hrtimer(struct hrti
static inline int
remove_hrtimer(struct hrtimer *timer, struct hrtimer_clock_base *base)
{
- if (hrtimer_active(timer)) {
+ if (hrtimer_is_queued(timer)) {
int reprogram;
/*
_
Patches currently in -mm which might be from tglx@xxxxxxxxxxxxx are
printk-timed-ratelimit.patch
schedule-removal-of-futex_fd.patch
setup_irq-better-mismatch-debugging.patch
gtod-exponential-update_wall_time.patch
gtod-persistent-clock-support-core.patch
gtod-persistent-clock-support-i386.patch
time-uninline-jiffiesh.patch
time-uninline-jiffiesh-fix.patch
time-fix-msecs_to_jiffies-bug.patch
time-fix-timeout-overflow.patch
cleanup-uninline-irq_enter-and-move-it-into-a-function.patch
dynticks-extend-next_timer_interrupt-to-use-a-reference-jiffie.patch
dynticks-extend-next_timer_interrupt-to-use-a-reference-jiffie-remove-incorrect-warning-in-kernel-timerc.patch
hrtimers-namespace-and-enum-cleanup.patch
hrtimers-clean-up-locking.patch
hrtimers-state-tracking.patch
hrtimers-clean-up-callback-tracking.patch
hrtimers-move-and-add-documentation.patch
clockevents-core.patch
clockevents-drivers-for-i386.patch
high-res-timers-core.patch
gtod-mark-tsc-unusable-for-highres-timers.patch
dynticks-core.patch
dynticks-add-nohz-stats-to-proc-stat.patch
dynticks-i386-arch-code.patch
high-res-timers-dynticks-enable-i386-support.patch
debugging-feature-timer-stats.patch
highres-timer-core-fix-status-check.patch
highres-timer-core-fix-commandline-setup.patch
clockevents-smp-on-up-features.patch
highres-depend-on-clockevents.patch
i386-apic-cleanup.patch
pm-timer-allow-early-access.patch
i386-lapic-timer-calibration.patch
clockevents-add-broadcast-support.patch
acpi-include-apic-h.patch
acpi-keep-track-of-timer-broadcast.patch
i386-apic-timer-use-clockevents-broadcast.patch
acpi-verify-lapic-timer.patch
round_jiffies-infrastructure.patch
round_jiffies-infrastructure-fix.patch
-
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