On 09/27/2012 02:47 PM, Lai Jiangshan wrote:

We found 3 bug while we test and develop memory hotplug.

PATCH1~2: the old code does not handle node_states[N_NORMAL_MEMORY] correctly,
it corrupts the memory.

PATCH3: move the modification of zone_start_pfn into corresponding lock.

please fully test them before send out. thanks.

CC: Rob Landley <redacted>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Jiang Liu <redacted>
CC: Jianguo Wu <redacted>
CC: Kay Sievers <redacted>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: Xishi Qiu <redacted>
CC: Mel Gorman <mgorman@suse.de>
CC: linux-doc@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-mm@kvack.org

Lai Jiangshan (3):
   memory_hotplug: fix missing nodemask management
   slub, hotplug: ignore unrelated node's hot-adding and hot-removing
   memory,hotplug: Don't modify the zone_start_pfn outside of
     zone_span_writelock()

  Documentation/memory-hotplug.txt |    5 ++-
  include/linux/memory.h           |    1 +
  mm/memory_hotplug.c              |   96 +++++++++++++++++++++++++++++++-------
  mm/page_alloc.c                  |    3 +-
  mm/slub.c                        |    4 +-
  5 files changed, 87 insertions(+), 22 deletions(-)

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>