Commit-ID:  781978e6e156101209f62b9ebc8783b70ef248de
Gitweb:     http://git.kernel.org/tip/781978e6e156101209f62b9ebc8783b70ef248de
Author:     Joonwoo Park <[email protected]>
AuthorDate: Mon, 27 Apr 2015 19:21:49 -0700
Committer:  Thomas Gleixner <[email protected]>
CommitDate: Tue, 5 May 2015 10:40:43 +0200

timer: Use timer->base for flag checks

At present, internal_add_timer() examines flags with 'base' which doesn't
contain flags.  Examine with 'timer->base' to avoid unnecessary waking up
of nohz CPU when timer base has TIMER_DEFERRABLE set.

Signed-off-by: Joonwoo Park <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: John Stultz <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
---
 kernel/time/timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 03f926c..d4af7c5 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -436,7 +436,7 @@ static void internal_add_timer(struct tvec_base *base, 
struct timer_list *timer)
         * require special care against races with idle_cpu(), lets deal
         * with that later.
         */
-       if (!tbase_get_deferrable(base) || tick_nohz_full_cpu(base->cpu))
+       if (!tbase_get_deferrable(timer->base) || tick_nohz_full_cpu(base->cpu))
                wake_up_nohz_cpu(base->cpu);
 }
 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to