[ovs-dev] [kernel-reload 8/8] xenserver: Introduce "force-reload-kmod" to reload kernel module.

Ethan Jackson ethan at nicira.com
Tue Feb 8 23:24:32 UTC 2011

On Tue, Feb 8, 2011 at 3:18 PM, Ben Pfaff <blp at nicira.com> wrote:
> On Tue, Feb 08, 2011 at 03:14:39PM -0800, Ethan Jackson wrote:
>> > +if test "$#" = 0; then
>> > + ? ?echo "# $0: no parameters given (use \"$0 --help\" for help)"
>> > +fi
>> Perhaps this should cause it to exit unsuccessfully.
> I did it this way in case the init script doesn't find any interfaces to
> save.  I guess it could avoid invoking it at all in that case.

Yeah I was wondering about this.  A possible approach (which I
considered mentioning but decided against it) would be to change the
force_reload_kmod init script to give up when ovs-save fails (for
example on my system it fails because I don't have iptables-save).  As
part of this change, we could change ovs-save to be more exacting and
die with an exit code when things aren't as it expects.  This has the
benefit of preventing bugs in ovs-save or configuration errors from
hosing the system.

Either way I think the current patch is fine.

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