cvs commit: src/sys/kern vfs_subr.c

Andre Oppermann andre at freebsd.org
Mon Sep 12 10:07:39 PDT 2005


Jung-uk Kim wrote:
> 
> On Monday 12 September 2005 11:31 am, Jung-uk Kim wrote:
> > jkim        2005-09-12 15:31:28 UTC
> >
> >   FreeBSD src repository
> >
> >   Modified files:
> >     sys/kern             vfs_subr.c
> >   Log:
> >   use monotonic `time_uptime' instead of `time_second'
> >
> >   Approved by:    anholt (mentor)
> >   Discussed on:   arch
> >
> >   Revision  Changes    Path
> >   1.645     +4 -4      src/sys/kern/vfs_subr.c
> 
> Please make sure to use `time_uptime' if you need monotonic timestamp.
> Especially many network stacks seem to make sequence IDs and
> timestamps to expire from `time_second' instead of time_uptime.
> time_second is not guaranteed to be monotonic!  time_uptime is.
> 
> http://docs.freebsd.org/cgi/mid.cgi?8153.1126340565
> http://docs.freebsd.org/cgi/mid.cgi?20050909214808.GA6021
> 
> I was almost tempted to do `sed -i -e 's/time_second/time_uptime'
> net*' (with few exceptions) but I wasn't sure how many standards
> really demand time_second in their actual packets/cells. :-(

I'm working my way through netinet/*.

-- 
Andre


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