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authorOleg Nesterov <oleg@redhat.com>2014-01-15 16:19:27 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-02-25 12:39:01 -0800
commitaea369b959bef10d235cd0714789cd8b0fe170b8 (patch)
tree61d445c4986184e5f041c2c3f88896b02aa8f54b /kernel/timer.c
parent18d8cb64c9c074cbe2bd677ab10fff8283abdb62 (diff)
timers: Make internal_add_timer() update ->next_timer if ->active_timers == 0
The internal_add_timer() function updates base->next_timer only if timer->expires < base->next_timer. This is correct, but it also makes sense to do the same if we add the first non-deferrable timer. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Tested-by: Mike Galbraith <bitbucket@online.de>
Diffstat (limited to 'kernel/timer.c')
-rw-r--r--kernel/timer.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/timer.c b/kernel/timer.c
index 0c638cf3d9d2..c0d8898fed98 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -404,9 +404,9 @@ static void internal_add_timer(struct tvec_base *base, struct timer_list *timer)
* Update base->active_timers and base->next_timer
*/
if (!tbase_get_deferrable(timer->base)) {
- if (time_before(timer->expires, base->next_timer))
+ if (!base->active_timers++ ||
+ time_before(timer->expires, base->next_timer))
base->next_timer = timer->expires;
- base->active_timers++;
}
base->all_timers++;
}