On Tuesday 13 April 2010 21:16:44 Benjamin Herrenschmidt wrote: > On Tue, 2010-04-13 at 16:02 +1000, Mark Nelson wrote: > > That's a good question, and one that I probably should have added to > > the > > commit message. > > But, following through, it looks like we end up calling into > > __remove_section() from mm/memory_hotplug.c and if > > CONFIG_SPARSEMEM_VMEMMAP is enabled we just return EBUSY as freeing > > memmap with vmemmap isn't implemented yet. > > > > So for the moment, I'm not sure we have to worry about it. > > We probably don't. IE. The vmemmap will remain for those struct pages, > which means they won't need to be allocated again if some memory is > plugged back there. If not, we just waste a bit of memory. Not a big > deal. > Excellent! That makes sense.
Thanks Ben! Mark. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
