On Tue, 2011-12-13 at 08:58 +0200, Lauri Hintsala wrote:
> Timestamp checking has been broken by the commit
> 2078af333d704fd894a2dedbc19cef5775cdadbb. Fix timestamp checking
> and clean the code.
> 
> cc: [email protected]
> cc: [email protected]
> 
> Signed-off-by: Lauri Hintsala <[email protected]>
> ---
>  .../initscripts/initscripts-1.0/bootmisc.sh        |   12 ++++++------
>  1 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/meta/recipes-core/initscripts/initscripts-1.0/bootmisc.sh 
> b/meta/recipes-core/initscripts/initscripts-1.0/bootmisc.sh
> index 03fd67c..6d68b35 100755
> --- a/meta/recipes-core/initscripts/initscripts-1.0/bootmisc.sh
> +++ b/meta/recipes-core/initscripts/initscripts-1.0/bootmisc.sh
> @@ -62,16 +62,16 @@ then
>  fi
>  
>  # Set the system clock from hardware clock
> -# If the timestamp is 1 day or more recent than the current time,
> +# If the timestamp is more recent than the current time,
>  # use the timestamp instead.
>  /etc/init.d/hwclock.sh start
>  if test -e /etc/timestamp
>  then
> -     SYSTEMDATE=`date  -u +%2m%2d%2H%2M%4Y`
> -     read TIMESTAMP < /etc/timestamp
> -        NEEDUPDATE=`expr \( $TIMESTAMP \> $SYSTEMDATE + 10000 \)`
> -        if [ $NEEDUPDATE -eq 1 ]; then 
> -             date -u $TIMESTAMP
> +     SYSTEMDATE=`date -u +%4Y%2m%2d`
> +     TIMESTAMP=`cat /etc/timestamp | awk '{ print substr($0,9,4) 
> substr($0,1,4); }'`
> +     NEEDUPDATE=`expr \( $TIMESTAMP \> $SYSTEMDATE \)`
> +     if [ $NEEDUPDATE -eq 1 ]; then
> +             date -u `cat /etc/timestamp`
>               /etc/init.d/hwclock.sh stop
>       fi
>  fi


For reference, the code in the boot process is trying not to cause
fork/exec calls. This is why it does:

read TIMESTAMP < /etc/timestamp

since this is faster than forking to run cat. Could we fix this in a
different way to avoid the fork/execs?

I appreciate this is a small detail but over the whole boot process it
mounts up!

Cheers,

Richard


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