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Merge branch 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  timers: Fix slack calculation for expired timers
  timekeeping: Fix timezone update
This commit is contained in:
Linus Torvalds 2010-05-24 07:59:17 -07:00
commit c3ed9ea4ab
2 changed files with 8 additions and 7 deletions
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8
kernel/time.c
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@ -132,10 +132,10 @@ SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv,
*/
static inline void warp_clock(void)
{
struct timespec delta, adjust;
delta.tv_sec = sys_tz.tz_minuteswest * 60;
delta.tv_nsec = 0;
adjust = timespec_add_safe(current_kernel_time(), delta);
struct timespec adjust;
adjust = current_kernel_time();
adjust.tv_sec += sys_tz.tz_minuteswest * 60;
do_settimeofday(&adjust);
}

7
kernel/timer.c
View file

@ -750,13 +750,14 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires)
unsigned long expires_limit, mask;
int bit;
expires_limit = expires + timer->slack;
expires_limit = expires;
if (timer->slack < 0) /* auto slack: use 0.4% */
if (timer->slack > -1)
expires_limit = expires + timer->slack;
else if (time_after(expires, jiffies)) /* auto slack: use 0.4% */
expires_limit = expires + (expires - jiffies)/256;
mask = expires ^ expires_limit;
if (mask == 0)
return expires;