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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-28 21:16:27 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-28 21:16:27 +0400 |
| commit | 29d03fa12bc02c0f8085cd6bb06d11359a4bccaf (patch) | |
| tree | 0810a1b2bad0f853b270afed55eddc595ae8d2fc /kernel/timer.c | |
| parent | 89ad6a6173127e5d31bea7a4a45ec23fa5bf4a17 (diff) | |
| parent | 45e0fffc8a7778282e6a1514a6ae3e7ae6545111 (diff) | |
| download | linux-29d03fa12bc02c0f8085cd6bb06d11359a4bccaf.tar.xz | |
Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
posix_timer: Fix error path in timer_create
hrtimer: Avoid double seqlock
timers: Move local variable into else section
timers: Fix slack calculation really
Diffstat (limited to 'kernel/timer.c')
| -rw-r--r-- | kernel/timer.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index e3b8c697bde4..2454172a80d3 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -752,11 +752,15 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires) expires_limit = expires; - if (timer->slack > -1) + if (timer->slack >= 0) { expires_limit = expires + timer->slack; - else if (time_after(expires, jiffies)) /* auto slack: use 0.4% */ - expires_limit = expires + (expires - jiffies)/256; + } else { + unsigned long now = jiffies; + /* No slack, if already expired else auto slack 0.4% */ + if (time_after(expires, now)) + expires_limit = expires + (expires - now)/256; + } mask = expires ^ expires_limit; if (mask == 0) return expires; |