Messages in this thread | | | Subject | Re: [PATCH v4] memory-hotplug: Fix kernel warning during memory hotplug on ppc64 | From | Dave Hansen <> | Date | Thu, 7 Jan 2016 17:13:58 -0800 |
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On 01/06/2016 02:30 PM, John Allen wrote: > On any architecture that uses memory_probe_store to reserve memory, the > udev rule will be triggered after the first section of the block is > reserved and will subsequently attempt to online the entire block, > interrupting the memory reservation process and causing the warning. > This patch modifies memory_probe_store to add a block of memory with > a single call to add_memory as opposed to looping through and adding > each section individually. A single call to add_memory is protected by > the mem_hotplug mutex which will prevent the udev rule from onlining > memory until the reservation of the entire block is complete.
Seems sane to me. Makes the code simpler too, so win win.
Acked-by: Dave Hansen <dave.hansen@intel.com>
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