Messages in this thread |  | | | Subject | Re: [PATCH 07/22] lmb: Add lmb_to_bootmem() | | From | Benjamin Herrenschmidt <> | | Date | Wed, 12 May 2010 10:03:36 +1000 |
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On Sun, 2010-05-09 at 21:31 -0700, Yinghai wrote: > > This is clumsy. Doesn't work with NUMA either. Also, > > it works NUMA. for x86 we managed to call that one time from > 2.6.34-rc1. (still called early_res_to_bootmem(). > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1842f90cc98625d4d9bf8f8b927f17705ceb4e9c > > > reserve_bootmem_generic() only exists on x86 afaik. > > previous patch add weak version > [PATCH 06/22] bootmem, x86: Add weak version of > reserve_bootmem_generic
It might work on x86, it won't work on sparc as far as I understand. In any case, I don't think that should be in lmb.c, that's boilerplate crap that eventually will go away.
One thing you don't seem to get is that several archs already have some code to move from lmb to bootmem.
The right approach when making something "generic" like that is not to make up another one deep into x86 gunkyness and make -that- generic ignoring the existing implementations.
Instead, make sure that the existing implementations are in sync, and then move -that- to a generic place, eventually adding (in a separate patch) the changes needed by x86 if any.
Cheers, Ben.
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