Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

clockevents: prevent stale tick_next_period for onlining CPUs

Browse source 
Impact: possible hang on CPU onlining in timer one shot mode.

The tick_next_period variable is only used during boot on nohz/highres
enabled systems, but for CPU onlining it needs to be maintained when
the per cpu clock events device operates in one shot mode.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2008-09-22 18:56:01 +02:00
parent 4faac97d44
commit 49d670fb8d
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
kernel/time/tick-sched.c
View file

@ -75,6 +75,9 @@ static void tick_do_update_jiffies64(ktime_t now)
incr * ticks); incr * ticks);
} }
do_timer(++ticks); do_timer(++ticks);
/* Keep the tick_next_period variable up to date */
tick_next_period = ktime_add(last_jiffies_update, tick_period);
} }
write_sequnlock(&xtime_lock); write_sequnlock(&xtime_lock);
} }