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timers: Move __run_timers() function 

Move __run_timers() below __next_timer_interrupt() and next_pending_bucket()
in preparation for __run_timers() NOHZ optimization.

No functional change.

Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Chris Mason <clm@fb.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: George Spelvin <linux@sciencehorizons.net>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Len Brown <lenb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160704094342.271872665@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Anna-Maria Gleixner 2016-07-04 09:50:33 +00:00 committed by Ingo Molnar
parent 53bf837b78
commit 73420fea80
1 changed files with 26 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
kernel/time/timer.c
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@ -1277,32 +1277,6 @@ static int collect_expired_timers(struct timer_base *base,
return levels; return levels;
} }
/**
* __run_timers - run all expired timers (if any) on this CPU.
* @base: the timer vector to be processed.
*/
static inline void __run_timers(struct timer_base *base)
{
struct hlist_head heads[LVL_DEPTH];
int levels;
if (!time_after_eq(jiffies, base->clk))
return;
spin_lock_irq(&base->lock);
while (time_after_eq(jiffies, base->clk)) {
levels = collect_expired_timers(base, heads);
base->clk++;
while (levels--)
expire_timers(base, heads + levels);
}
base->running_timer = NULL;
spin_unlock_irq(&base->lock);
}
#ifdef CONFIG_NO_HZ_COMMON #ifdef CONFIG_NO_HZ_COMMON
/* /*
* Find the next pending bucket of a level. Search from @offset + @clk upwards * Find the next pending bucket of a level. Search from @offset + @clk upwards
@ -1472,6 +1446,32 @@ void update_process_times(int user_tick)
run_posix_cpu_timers(p); run_posix_cpu_timers(p);
} }
/**
* __run_timers - run all expired timers (if any) on this CPU.
* @base: the timer vector to be processed.
*/
static inline void __run_timers(struct timer_base *base)
{
struct hlist_head heads[LVL_DEPTH];
int levels;
if (!time_after_eq(jiffies, base->clk))
return;
spin_lock_irq(&base->lock);
while (time_after_eq(jiffies, base->clk)) {
levels = collect_expired_timers(base, heads);
base->clk++;
while (levels--)
expire_timers(base, heads + levels);
}
base->running_timer = NULL;
spin_unlock_irq(&base->lock);
}
/* /*
* This function runs timers and the timer-tq in bottom half context. * This function runs timers and the timer-tq in bottom half context.
*/ */