Re: [RFC PATCH v3 11/13] memory-hotplug : free memmap of sparse-vmemmap

2012-07-11 Thread Wen Congyang
At 07/11/2012 01:52 PM, Yasuaki Ishimatsu Wrote: 2012/07/11 14:06, Wen Congyang wrote: Hi Wen, At 07/09/2012 06:33 PM, Yasuaki Ishimatsu Wrote: I don't think that all pages of virtual mapping in removed memory can be freed, since page which type is MIX_SECTION_INFO is difficult to free.

Re: [RFC PATCH v3 11/13] memory-hotplug : free memmap of sparse-vmemmap

2012-07-11 Thread Yasuaki Ishimatsu
Hi Wen, 2012/07/11 15:25, Wen Congyang wrote: At 07/11/2012 01:52 PM, Yasuaki Ishimatsu Wrote: 2012/07/11 14:06, Wen Congyang wrote: Hi Wen, At 07/09/2012 06:33 PM, Yasuaki Ishimatsu Wrote: I don't think that all pages of virtual mapping in removed memory can be freed, since page which

Re: [RFC PATCH v3 11/13] memory-hotplug : free memmap of sparse-vmemmap

2012-07-11 Thread Wen Congyang
At 07/11/2012 02:48 PM, Yasuaki Ishimatsu Wrote: Hi Wen, 2012/07/11 15:25, Wen Congyang wrote: At 07/11/2012 01:52 PM, Yasuaki Ishimatsu Wrote: 2012/07/11 14:06, Wen Congyang wrote: Hi Wen, At 07/09/2012 06:33 PM, Yasuaki Ishimatsu Wrote: I don't think that all pages of virtual mapping

Re: [RFC PATCH v3 11/13] memory-hotplug : free memmap of sparse-vmemmap

2012-07-10 Thread Wen Congyang
At 07/09/2012 06:33 PM, Yasuaki Ishimatsu Wrote: I don't think that all pages of virtual mapping in removed memory can be freed, since page which type is MIX_SECTION_INFO is difficult to free. So, the patch only frees page which type is SECTION_INFO at first. CC: David Rientjes

Re: [RFC PATCH v3 11/13] memory-hotplug : free memmap of sparse-vmemmap

2012-07-10 Thread Yasuaki Ishimatsu
2012/07/11 14:06, Wen Congyang wrote: Hi Wen, At 07/09/2012 06:33 PM, Yasuaki Ishimatsu Wrote: I don't think that all pages of virtual mapping in removed memory can be freed, since page which type is MIX_SECTION_INFO is difficult to free. So, the patch only frees page which type is

[RFC PATCH v3 11/13] memory-hotplug : free memmap of sparse-vmemmap

2012-07-09 Thread Yasuaki Ishimatsu
I don't think that all pages of virtual mapping in removed memory can be freed, since page which type is MIX_SECTION_INFO is difficult to free. So, the patch only frees page which type is SECTION_INFO at first. CC: David Rientjes rient...@google.com CC: Jiang Liu liu...@gmail.com CC: Len Brown