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Re: [RFC PATCH] mm, memory_hotplug: support movable_node for hotplugable nodes

From Reza Arbab <arbab@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject Re: [RFC PATCH] mm, memory_hotplug: support movable_node for hotplugable nodes
Date 2017-06-01 18:50 +0200
Message-ID <tNBsn-53m-49@gated-at.bofh.it> (permalink)
References <tNxoK-2tN-3@gated-at.bofh.it> <tNAPF-4Ly-33@gated-at.bofh.it> <tNAZl-4Q6-43@gated-at.bofh.it>
Organization IBM Linux Technology Center

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On Thu, Jun 01, 2017 at 06:14:54PM +0200, Michal Hocko wrote:
>On Thu 01-06-17 11:02:28, Reza Arbab wrote:
>> On Thu, Jun 01, 2017 at 02:20:04PM +0200, Michal Hocko wrote:
>> >Teach move_pfn_range that MMOP_ONLINE_KEEP can use the movable zone if
>> >movable_node is enabled and the range doesn't overlap with the existing
>> >normal zone. This should provide a reasonable default onlining strategy.
>>
>> I like it. If your distro has some auto-onlining udev rule like
>>
>> SUBSYSTEM=="memory", ACTION=="add", ATTR{state}=="offline", ATTR{state}="online"
>>
>> You could get things onlined as movable just by putting movable_node in
>> the boot params, without changing/modifying the rule.
>
>yes this is the primary point of the patch ;)

Ha. What can I say, I like restating the obvious!

At some point after all these cleanups/improvements, it would be worth 
making sure Documentation/memory-hotplug.txt is still accurate.

-- 
Reza Arbab

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Thread

[RFC PATCH] mm, memory_hotplug: support movable_node for hotplugable nodes Michal Hocko <mhocko@kernel.org> - 2017-06-01 14:30 +0200
  Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Vlastimil Babka <vbabka@suse.cz> - 2017-06-01 16:20 +0200
    Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Michal Hocko <mhocko@kernel.org> - 2017-06-01 16:30 +0200
      Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Reza Arbab <arbab@linux.vnet.ibm.com> - 2017-06-01 17:20 +0200
        Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Michal Hocko <mhocko@kernel.org> - 2017-06-01 17:40 +0200
          Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Reza Arbab <arbab@linux.vnet.ibm.com> - 2017-06-01 17:50 +0200
            Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Michal Hocko <mhocko@kernel.org> - 2017-06-01 18:00 +0200
              Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Reza Arbab <arbab@linux.vnet.ibm.com> - 2017-06-01 18:10 +0200
  Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Reza Arbab <arbab@linux.vnet.ibm.com> - 2017-06-01 18:10 +0200
    Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Michal Hocko <mhocko@kernel.org> - 2017-06-01 18:20 +0200
      Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Reza Arbab <arbab@linux.vnet.ibm.com> - 2017-06-01 18:50 +0200
  Re: [RFC PATCH] mm, memory_hotplug: support movable_node for  hotplugable nodes Michal Hocko <mhocko@kernel.org> - 2017-06-05 10:20 +0200

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