Re: mm: introduce new field "managed_pages" to struct zone

Ric Mason <ric.masonn@xxxxxxxxx> · Sun, 03 Mar 2013 13:01:12 +0800



    On 02/28/2013 02:13 PM, Simon Jeons
      wrote:

    
      Hi Jiang,

      
      https://patchwork.kernel.org/patch/1781291/

      
      You said that the bootmem allocator doesn't touch *highmem pages*,
      so highmem zones' managed_pages is set to the accurate value
      "spanned_pages - absent_pages" in function free_area_init_core()
      and won't be updated anymore. Why it doesn't touch *highmem
      pages*? Could you point out where you figure out this?

    
    Yeah, why bootmem doesn't touch highmem pages? The patch is buggy.
    :(