1. 05 7月, 2006 1 次提交
    • Y
      [PATCH] Fix copying of pgdat array on each node for ia64 memory hotplug · dd8041f1
      Yasunori Goto 提交于
      I found a bug in memory hot-add code for ia64.
      
      IA64's code has copies of pgdat's array on each node to reduce memory
      access over crossing node.  This array is used by NODE_DATA() macro.  When
      new node is hot-added, this pgdat's array should be updated and copied on
      new node too.
      
      However, I used for_each_online_node() in scatter_node_data() to copy
      it. This meant its array is not copied on new node.
      Because initialization of structures for new node was halfway,
      so online_node_map couldn't be set at this time.
      
      To copy arrays on new node, I changed it to check value of pgdat_list[]
      which is source array of copies.  I tested this patch with my Memory Hotadd
      emulation on Tiger4.  This patch is for 2.6.17-git20.
      Signed-off-by: NYasunori Goto <y-goto@jp.fujitsu.com>
      Cc: "Luck, Tony" <tony.luck@intel.com>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      dd8041f1
  2. 04 7月, 2006 39 次提交