On Wed, 6 Apr 2016, Andrew Morton wrote: > > This patchset continues the work I started with: > > > > commit 31bc3858ea3ebcc3157b3f5f0e624c5962f5a7a6 > > Author: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> > > Date: Tue Mar 15 14:56:48 2016 -0700 > > > > memory-hotplug: add automatic onlining policy for the newly added memory > > > > Initially I was going to stop there and bring the policy setting logic to > > userspace. I met two issues on this way: > > > > 1) It is possible to have memory hotplugged at boot (e.g. with QEMU). These > > blocks stay offlined if we turn the onlining policy on by userspace. > > > > 2) My attempt to bring this policy setting to systemd failed, systemd > > maintainers suggest to change the default in kernel or ... to use tmpfiles.d > > to alter the policy (which looks like a hack to me): > > https://github.com/systemd/systemd/pull/2938 > > That discussion really didn't come to a conclusion and I don't > understand why you consider Lennert's "recommended way" to be a hack? > > > Here I suggest to add a config option to set the default value for the policy > > and a kernel command line parameter to make the override. > > But the patchset looks pretty reasonable regardless of the above. > I don't understand why initscripts simply cannot crawl sysfs memory blocks and online them for the same behavior. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>