cvs commit: src/sys/kern kern_tc.c

[Jeroen C. van Gelderen]

On Wednesday, Jun 25, 2003, at 17:23 US/Eastern, Warner Losh wrote:

> imp         2003/06/25 14:23:51 PDT
>
>   FreeBSD src repository
>
>   Modified files:
>     sys/kern             kern_tc.c
>   Log:
>   Fix leap second processing by the kernel time keeping routines.
>   Before, we would add/subtract the leap second when the system had 
> been
>   up for an even multiple of days, rather than at the end of the day, 
> as
>   a leap second is defined (at least wrt ntp).  We do this by
>   calculating the notion of UTC earlier in the loop, and passing that 
> to
>   get it adjusted.  Any adjustments that ntp_update_second makes to 
> this
>   time are then transferred to boot time.  We can't pass it either the
>   boot time or the uptime because their sum is what determines when a
>   leap second is needed.  This code adds an extra assignment and two
>   extra compare in the typical case, which is as cheap as I could made
>   it.
[...]

Exemplary commit message.

-J
-- 
Jeroen C. van Gelderen - jeroen at vangelderen.org

Squeeze human nature into the straitjacket of criminal
justice and crime will appear. -- Karl Kraus (1908)