Messages in this thread | | | Date | Mon, 24 Mar 2003 13:10:55 +0100 (CET) | From | Tim Schmielau <> | Subject | Re: [PATCH] fix nanosleep() granularity bumps |
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> On Tue, Mar 18, 2003 at 10:05:56AM +0100, Tim Schmielau wrote: [...] > Suggest the attached patch as a fix instead - easier to understand I > think and works for every possible start value. This is what I made for > Andrea Arcangeli many years ago... > > diff -ur linux-2.5.65/kernel/timer.c linux-2.5.65-new/kernel/timer.c > --- linux-2.5.65/kernel/timer.c 2003-03-17 22:44:41.000000000 +0100 > +++ linux-2.5.65-new/kernel/timer.c 2003-03-24 12:57:31.000000000 +0100 > @@ -1182,11 +1182,14 @@ > INIT_LIST_HEAD(base->tv1.vec + j); > > base->timer_jiffies = INITIAL_JIFFIES; > - base->tv1.index = INITIAL_JIFFIES & TVR_MASK; > - base->tv2.index = (INITIAL_JIFFIES >> TVR_BITS) & TVN_MASK; > - base->tv3.index = (INITIAL_JIFFIES >> (TVR_BITS+TVN_BITS)) & TVN_MASK; > - base->tv4.index = (INITIAL_JIFFIES >> (TVR_BITS+2*TVN_BITS)) & TVN_MASK; > - base->tv5.index = (INITIAL_JIFFIES >> (TVR_BITS+3*TVN_BITS)) & TVN_MASK; > + base->tv1.index = (1 + (INITIAL_JIFFIES - 1)) & TVR_MASK; > + base->tv2.index = (1 + ((INITIAL_JIFFIES - 1) >> TVR_BITS)) & TVN_MASK; > + base->tv3.index = (1 + ((INITIAL_JIFFIES - 1) > + >> (TVR_BITS + TVN_BITS))) & TVN_MASK; > + base->tv4.index = (1 + ((INITIAL_JIFFIES - 1) > + >> (TVR_BITS + 2 * TVN_BITS))) & TVN_MASK; > + base->tv5.index = (1 + ((INITIAL_JIFFIES - 1) > + >> (TVR_BITS + 3 * TVN_BITS))) & TVN_MASK; > } > > static int __devinit timer_cpu_notify(struct notifier_block *self,
Too late - the whole tv[1-5].index duplication is gone already after a cleanup done by George Anzinger.
Tim
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