diff options
| author | John Stultz <john.stultz@linaro.org> | 2014-06-04 16:11:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-04 16:54:17 -0700 |
| commit | c224815dac9c739b79050d3cc67443ff500bc478 (patch) | |
| tree | 07cca4568dd1ae0c89241c1b335a1941ec2bca85 | |
| parent | aac74dc495456412c4130a1167ce4beb6c1f0b38 (diff) | |
printk: Add printk_deferred_once
Two of the three prink_deferred uses are really printk_once style
uses, so add a printk_deferred_once macro to simplify those call
sites.
Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Bohac <jbohac@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/printk.h | 11 | ||||
| -rw-r--r-- | kernel/sched/deadline.c | 7 | ||||
| -rw-r--r-- | kernel/sched/rt.c | 8 |
3 files changed, 13 insertions, 13 deletions
diff --git a/include/linux/printk.h b/include/linux/printk.h index 7847301e2837..f086d6c99dbc 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -266,9 +266,20 @@ extern asmlinkage void dump_stack(void) __cold; printk(fmt, ##__VA_ARGS__); \ } \ }) +#define printk_deferred_once(fmt, ...) \ +({ \ + static bool __print_once __read_mostly; \ + \ + if (!__print_once) { \ + __print_once = true; \ + printk_deferred(fmt, ##__VA_ARGS__); \ + } \ +}) #else #define printk_once(fmt, ...) \ no_printk(fmt, ##__VA_ARGS__) +#define printk_deferred_once(fmt, ...) \ + no_printk(fmt, ##__VA_ARGS__) #endif #define pr_emerg_once(fmt, ...) \ diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index d17e1c48a79d..e1574fca03b5 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -348,12 +348,7 @@ static void replenish_dl_entity(struct sched_dl_entity *dl_se, * entity. */ if (dl_time_before(dl_se->deadline, rq_clock(rq))) { - static bool lag_once = false; - - if (!lag_once) { - lag_once = true; - printk_deferred("sched: DL replenish lagged to much\n"); - } + printk_deferred_once("sched: DL replenish lagged to much\n"); dl_se->deadline = rq_clock(rq) + pi_se->dl_deadline; dl_se->runtime = pi_se->dl_runtime; } diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 5d7667b37c21..b3512f1afce9 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -890,14 +890,8 @@ static int sched_rt_runtime_exceeded(struct rt_rq *rt_rq) * but accrue some time due to boosting. */ if (likely(rt_b->rt_runtime)) { - static bool once = false; - rt_rq->rt_throttled = 1; - - if (!once) { - once = true; - printk_deferred("sched: RT throttling activated\n"); - } + printk_deferred_once("sched: RT throttling activated\n"); } else { /* * In case we did anyway, make it go away, |