Messages in this thread | | | Subject | Re: [PATCH 1/4] Memory Add Fixes for ppc64 | From | Benjamin Herrenschmidt <> | Date | Tue, 08 Nov 2005 08:12:56 +1100 |
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> Just curious if we still want to boost MAX_ORDER like this with 64k > pages? Doesn't that make the MAX_ORDER block size 256MB in this case? > Also, not quite sure what happens if memory size (a 16 MB multiple) > does not align with a MAX_ORDER block size (a 256MB multiple in this > case). My 'guess' is that the page allocator would not use it as it > would not fit within the buddy system. > > cc'ing SPARSEMEM author Andy Whitcroft.
Yes, the MAX_ORDER should be different indeed. But can Kconfig do that ? That is have the default value be different based on a Kconfig option ? I don't see that ... We may have to do things differently here...
Ben.
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