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| author | Ingo Molnar <mingo@elte.hu> | 2011-07-01 10:34:09 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-07-01 10:34:24 +0200 |
| commit | 36b2e922b5acd291051fab25bc7535274ce49532 (patch) | |
| tree | ef4cdd6894075bb419cc31625b037f2b9212962f /kernel/timer.c | |
| parent | e197f094b7da7d94812492cfcd706d143f1020e5 (diff) | |
| parent | b0af8dfdd67699e25083478c63eedef2e72ebd85 (diff) | |
| download | linux-36b2e922b5acd291051fab25bc7535274ce49532.tar.gz linux-36b2e922b5acd291051fab25bc7535274ce49532.tar.bz2 linux-36b2e922b5acd291051fab25bc7535274ce49532.zip | |
Merge commit 'v3.0-rc5' into sched/core
Merge reason: Move to a (much) newer base.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/timer.c')
| -rw-r--r-- | kernel/timer.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index fd6198692b57..8cff36119e4d 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -749,16 +749,15 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires) unsigned long expires_limit, mask; int bit; - expires_limit = expires; - if (timer->slack >= 0) { expires_limit = expires + timer->slack; } else { - unsigned long now = jiffies; + long delta = expires - jiffies; + + if (delta < 256) + return expires; - /* No slack, if already expired else auto slack 0.4% */ - if (time_after(expires, now)) - expires_limit = expires + (expires - now)/256; + expires_limit = expires + delta / 256; } mask = expires ^ expires_limit; if (mask == 0) @@ -795,6 +794,8 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires) */ int mod_timer(struct timer_list *timer, unsigned long expires) { + expires = apply_slack(timer, expires); + /* * This is a common optimization triggered by the * networking code - if the timer is re-modified @@ -803,8 +804,6 @@ int mod_timer(struct timer_list *timer, unsigned long expires) if (timer_pending(timer) && timer->expires == expires) return 1; - expires = apply_slack(timer, expires); - return __mod_timer(timer, expires, false, TIMER_NOT_PINNED); } EXPORT_SYMBOL(mod_timer); |