Re: [PATCH 4/5] [PPC] update lmb for hotplug memory add/remove

[Kumar Gala]

On Mar 27, 2008, at 7:39 PM, Badari Pulavarty wrote:
> ppc kernel maintains information about logical memory blocks in
> lmb.memory structure at the boot time. Its not updated for
> hotplug memory add/remove. hotplug memory notifier for memory
> add/remove now updates lmb.memory.
>
> This information is useful for eHEA driver to find out the memory
> layout and holes.
>
> NOTE: No special locking is needed for lmb_add() and lmb_remove().
> Calls to these are serialized by caller. (pSeries_reconfig_chain).
>
> Signed-off-by: Badari Pulavarty <pbadari@xxxxxxxxxx>
> ---
> arch/powerpc/platforms/pseries/hotplug-memory.c |   43 +++++++++++++++
> include/linux/lmb.h                             |    3 -
> lib/lmb.c                                       |   66 ++++++++++++++ 
> ++++++----
> 3 files changed, 102 insertions(+), 10 deletions(-)

How is lmb_remove different than lmb_alloc?

- k
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