Messages in this thread | | | Date | Tue, 18 Apr 2006 16:42:40 +1000 | From | Nick Piggin <> | Subject | Re: [PATCH 00/05] robust per_cpu allocation for modules |
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Steven Rostedt wrote:
> Understood, but I'm going to start looking in the way Rusty and Arnd > suggested with the vmalloc approach. This would allow for saving of > memory and dynamic allocation of module memory making it more robust. And > all this without that evil extra indirection!
Remember that this approach could effectively just move the indirection to the TLB / page tables (well, I say "moves" because large kernel mappings are effectively free compared with 4K mappings).
So be careful about coding up a large amount of work before unleashing it: I doubt you'll be able to find a solution that doesn't involve tradeoffs somewhere (but wohoo if you can).
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