On Mon, Feb 25, 2008 at 3:55 AM, Balbir Singh <[EMAIL PROTECTED]> wrote: > > > A boot option for the memory controller was discussed on lkml. It is a good > idea to add it, since it saves memory for people who want to turn off the > memory controller. > > By default the option is on for the following two reasons > > 1. It provides compatibility with the current scheme where the memory > controller turns on if the config option is enabled > 2. It allows for wider testing of the memory controller, once the config > option is enabled > > We still allow the create, destroy callbacks to succeed, since they are > not aware of boot options. We do not populate the directory will > memory resource controller specific files.
Would it make more sense to have a generic cgroups boot option for this? Something like cgroup_disable=xxx, which would be parsed by cgroups and would cause: - a "disabled" flag to be set to true in the subsys object (you could use this in place of the mem_cgroup_on flag) - prevent the disabled cgroup from being bound to any mounted hierarchy (so it would be ignored in a mount with no subsystem options, and a mount with options that specifically pick that subsystem would give an error) Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
