Re: [RFC/PATCH 2/2] kernel: don't update load average during snapshot/shutdown

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Friday, 27 April 2007 15:29, Pekka J Enberg wrote:
> From: Nigel Cunningham <nigel@nigel.suspend2.net>
> 
> As explained by Nigel, Sendmail and some other programs look at the
> load average and stop delivering when it gets too high.  The CPU
> intensiveness of suspending to disk pushes the load average up quite
> high but post-resume we shouldn't really take that into account.  Not
> updating the load average therefore makes snapshot/shutdown invisible
> to sendmail and so on.
> 
> Cc: Pavel Machek <pavel@ucw.cz>
> Cc: Rafael J. Wysocki <rjw@sisk.pl>
> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

This clashes with the recent freezer changes in -mm quite violently.

We're moving the freezer to kernel/freezer.c and we're introducing a special
field in task_struct for the freezer flags.

Please have a look at the freezer changes queued up in -mm and the freezer
patches recently sent.

Greetings,
Rafael